{"title":"Johnson Evinrude Gaskets","description":"","products":[{"product_id":"drain-screw-gasket-for-mercury-mercruiser-and-johnson-evinrude-lower-unit-12-19184","title":"Drain Screw Gasket for Mercury MerCruiser and Johnson Evinrude Lower Unit 12-19183","description":"\u003ch2\u003eDrain Screw Gasket – Fits Mercury MerCruiser \u0026amp; Johnson Evinrude Outboards\u003c\/h2\u003e\n\u003cp\u003eThis rubber-coated stainless steel washer forms a tear-resistant seal for the \u003cstrong\u003e3\/8-16 drain\/fill screw holes\u003c\/strong\u003e in outboard and stern drive gearcases. It is designed for use on a wide range of Mercury, MerCruiser, Johnson, and Evinrude marine engines, providing a reliable, leak-free fit without requiring compression.\u003c\/p\u003e\n\u003cp\u003eThis part directly replaces Mercury 12-19183Q02, 12-19183K02, 12-191833, 191832, 19183, 19183B, 20260B, 20260, F8186, F50556, F8077; Johnson Evinrude 307552, 300434; Sierra 18-2244, 18-2945, 18-29451-9; GLM 31170; Mallory 9-60101, 9-60102; and SEI Marine 98-102-09.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTear-Resistant Seal:\u003c\/strong\u003e Creates a durable seal for 3\/8-16 drain\/fill screw holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Material:\u003c\/strong\u003e Made from high-quality, rubber-coated stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern Design:\u003c\/strong\u003e The newer yellow design seals effectively without needing to be crushed like older fiber gaskets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ MerCruiser\u003c\/td\u003e\n\u003ctd\u003e12-19183Q02, 12-19183K02, 12-191833, 191832, 19183, 19183B, 20260B, 20260, F8186, F50556, F8077\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson \/ Evinrude\u003c\/td\u003e\n\u003ctd\u003e307552, 300434\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-2244, 18-2945, 18-29451-9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e31170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-60101, 9-60102\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEI Marine\u003c\/td\u003e\n\u003ctd\u003e98-102-09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca rel=\"nofollow noopener\" href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca rel=\"nofollow noopener\" href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Johnson\/Evinrude owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca rel=\"nofollow noopener\" href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" target=\"_blank\"\u003eJohnson\/Evinrude Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003ch3\u003eMercury\/MerCruiser\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eOutboard Motors\u003c\/td\u003e\n\u003ctd\u003eAll*\u003c\/td\u003e\n\u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e12-19183\u003c\/td\u003e\n\u003ctd\u003e*Except Japanese origin models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eOutboard Lower Units\u003c\/td\u003e\n\u003ctd\u003eAll*\u003c\/td\u003e\n\u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e12-19183\u003c\/td\u003e\n\u003ctd\u003e*For 3\/8-16 drain\/fill screw holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eAll Stern Drives\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e12-19183\u003c\/td\u003e\n\u003ctd\u003eFor 3\/8-16 drain\/fill screw holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e4.3L, 5.0L, 5.7L, 6.2L\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e12-19183\u003c\/td\u003e\n\u003ctd\u003eConfirmed fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e350, 377, 383 MPI\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e12-19183\u003c\/td\u003e\n\u003ctd\u003eConfirmed fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eJohnson\/Evinrude\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard Lower Units\u003c\/td\u003e\n\u003ctd\u003eAll*\u003c\/td\u003e\n\u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n\u003ctd\u003e307552\u003c\/td\u003e\n\u003ctd\u003e*For 3\/8-16 drain\/fill screw holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eMultiple Models\u003c\/td\u003e\n\u003ctd\u003e18-75 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n\u003ctd\u003e307552\u003c\/td\u003e\n\u003ctd\u003eUsed with compatible drain screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eChrysler\/Force\/US Marine\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChrysler\/Force\/US Marine\u003c\/td\u003e\n\u003ctd\u003eOutboard Lower Units\u003c\/td\u003e\n\u003ctd\u003eAll*\u003c\/td\u003e\n\u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003eF50556, F8077, F8186\u003c\/td\u003e\n\u003ctd\u003e*For 3\/8-16 drain\/fill screw holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDrain\/Fill Screw Gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eUse with 3\/8-16 drain\/fill screw holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eRubber-coated stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Color\u003c\/td\u003e\n\u003ctd\u003eYellow (newer design) or Blue (older design)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003e3\/8-16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Technical Attributes\u003c\/td\u003e\n\u003ctd\u003eDesigned to form tear-resistant seal without requiring compression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e12 x Drain Screw Gasket (\u003cspan style=\"color: red;\"\u003e12-19183Q02\u003c\/span\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eLocate the drain and fill screws on the lower unit gearcase. They are typically large, flathead screws.\u003c\/li\u003e\n\u003cli\u003ePosition a suitable drain pan under the lower screw (drain screw).\u003c\/li\u003e\n\u003cli\u003eRemove the top screw (vent screw) first, then remove the bottom drain screw to allow the oil to drain completely.\u003c\/li\u003e\n\u003cli\u003eCarefully remove the old gasket from each screw. Clean the screw threads and the sealing surface on the gearcase.\u003c\/li\u003e\n\u003cli\u003eSlide the new gasket onto each screw.\u003c\/li\u003e\n\u003cli\u003eReinstall the bottom drain screw first and tighten until snug. \u003cstrong\u003eDo not overtighten.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFill the gearcase with the recommended lubricant through the bottom hole until it flows out of the top vent hole.\u003c\/li\u003e\n\u003cli\u003eReinstall the top vent screw and tighten securely. Wipe away any excess oil and inspect for leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I know if this gasket will fit my engine?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This gasket is designed for most Mercury, MerCruiser, Johnson, and Evinrude models with \u003cstrong\u003e3\/8-16 drain\/fill screw holes\u003c\/strong\u003e. The best way to confirm fitment is to check your OEM part number against the cross-reference list provided on this page. Also, verify your engine model is listed in the compatibility tables.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the yellow gasket and the older blue ones?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The \u003cstrong\u003eyellow gasket is a newer design\u003c\/strong\u003e made of a rubber-coated stainless steel that seals effectively without being crushed. The older style blue, orange, or black gaskets were a fiber design that required compression to create a seal and were typically single-use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace my drain screw gaskets?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: It is highly recommended to \u003cstrong\u003ereplace the drain and fill screw gaskets every time you change your gearcase oil\u003c\/strong\u003e. This ensures a proper, leak-free seal and protects your engine's lower unit from water intrusion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: OEM vs. Aftermarket?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n\u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":49568103235897,"sku":"2151-12","price":12.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Drain_Screw_Gasket_for_Mercury_MerCruiser_and_Johnson_Evinrude_Lower_Unit________12-19183_-_JLM_MARINE-8287493.jpg?v=1755742138"},{"product_id":"fill-and-drain-screw-washer-for-johnson-evinrude-omc-engines-311598","title":"Drain\/Fill Plug Washer – Fits Johnson\/Evinrude\/OMC Engines (Replaces 311598)","description":"\u003ch2\u003eDrain\/Fill Plug Washer – Fits Johnson\/Evinrude\/OMC Engines (Replaces 311598)\u003c\/h2\u003e\n\u003cp\u003eThis high-quality nylon washer provides a secure seal for the drain and fill plugs on a wide range of outboard and sterndrive lower units. It is designed to fit various Johnson\/Evinrude outboards from the early 1970s through 2006, as well as multiple OMC Cobra and Volvo Penta sterndrive models.\u003c\/p\u003e\n\u003cp\u003eThis component directly replaces multiple OEM and aftermarket part numbers, ensuring broad compatibility and reliable performance. It is crucial for preventing water intrusion and gear lube leaks in the gearcase.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable Nylon construction for a reliable press fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits drain\/fill screws with 10mm threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Creates a tight seal for lower unit drain and fill screws.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e311598 \/ 0311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e3852105\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e777517\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-4248 \/ 18-4248-9 (5-pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e31171\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-60408\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecmar\u003c\/td\u003e\n\u003ctd\u003eREC311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Johnson\/Evinrude owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eJohnson\/Evinrude Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eJohnson\/Evinrude Outboards\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e400-800 Series\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1973-1985\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e2-cyl. Loopcharged\u003c\/td\u003e\n\u003ctd\u003e40-60 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975-1988\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e3-cyl. Loopcharged\u003c\/td\u003e\n\u003ctd\u003e60-75 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975-1988\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e2-cyl. Crossflow\u003c\/td\u003e\n\u003ctd\u003e20-35 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980-2005\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003eThru-prop exhaust models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e3-cyl. Loopcharged\u003c\/td\u003e\n\u003ctd\u003e25-35 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996-2001\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 \u0026amp; V6\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979-2006\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 60\u003c\/td\u003e\n\u003ctd\u003e60 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995-2006\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 90\u003c\/td\u003e\n\u003ctd\u003e90 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1978-1998\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eE115GNLAFH\u003c\/td\u003e\n\u003ctd\u003e115 HP\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003ctd\u003eConfirmed from user question\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eVolvo Penta Sterndrives\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eSX\u003c\/td\u003e\n\u003ctd\u003e[Same as 311598]\u003c\/td\u003e\n\u003ctd\u003eGear Housing Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eSX\u003c\/td\u003e\n\u003ctd\u003e[Same as 311598]\u003c\/td\u003e\n\u003ctd\u003eDriveshaft Housing Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eSX-A, FWD, DPS-A, DPS-B\u003c\/td\u003e\n\u003ctd\u003e[Same as 311598]\u003c\/td\u003e\n\u003ctd\u003eUpper Housing Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eDP-G, DPX-A\u003c\/td\u003e\n\u003ctd\u003e[Same as 311598]\u003c\/td\u003e\n\u003ctd\u003eUpper Housing Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eDPS-A, DPS-B\u003c\/td\u003e\n\u003ctd\u003e[Same as 311598]\u003c\/td\u003e\n\u003ctd\u003eLower Housing Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eSX-A\u003c\/td\u003e\n\u003ctd\u003e[Same as 311598]\u003c\/td\u003e\n\u003ctd\u003eLower Housing Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eFWD\u003c\/td\u003e\n\u003ctd\u003e[Same as 311598]\u003c\/td\u003e\n\u003ctd\u003eLower Housing Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eOMC Stern Drives\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e302CCPMDA, 302CGPMDA, 302DCMMDA, 302DGMMDA\u003c\/td\u003e\n\u003ctd\u003e3.0L\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e502ACPMDA, 502AGPMDA, 50FACPMDA, 50FACPMDM, 50FAGPMDA, 50FAGPMDM\u003c\/td\u003e\n\u003ctd\u003e5.0L\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e432ACMMDA, 432ACPMDA, 432AGMMDA, 432AGPMDA\u003c\/td\u003e\n\u003ctd\u003e4.3L\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e572ACPMDA, 572AGPMDA\u003c\/td\u003e\n\u003ctd\u003e5.7L\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e584ACPMDA, 584AGPMDA, 58FACPMDA, 58FACPMDM, 58FAGPMDA, 58FAGPMDM, 58FBDPMDA\u003c\/td\u003e\n\u003ctd\u003e5.8L\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e744DCPMDA, 744DCPMDM, 744DDPMDA, 744DDPMDM, 744DGPMDA, 744DGPMDM, 744DJPMDA, 744DJPMDM\u003c\/td\u003e\n\u003ctd\u003e7.4L\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003e311598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDrain\/Fill Plug Washer\/Gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eManual installation on drain\/fill screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNylon\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003ePress fit onto drain\/fill screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003eCompatible with 10mm threads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eWhite\/Natural\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Quantity\u003c\/td\u003e\n\u003ctd\u003eSold individually (also available in 5-pack or 50-pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eManufacturer standard warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Drain\/Fill Screw Washer (Replaces 311598\/0311598)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color:red;\"\u003eThis product is sold as a single washer. Also available in 5-packs and 50-packs.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eLocate the lower unit drain and fill plugs on your engine or sterndrive. You will need two new washers for a complete gear lube change.\u003c\/li\u003e\n\u003cli\u003ePlace a drain pan under the lower unit. Remove the bottom (drain) screw first, then the upper (fill\/vent) screw to allow the oil to drain completely.\u003c\/li\u003e\n\u003cli\u003eRemove the old washers from both screws. Clean the screw threads and the sealing surfaces on the gearcase to remove any old gasket material or debris.\u003c\/li\u003e\n\u003cli\u003ePress one new washer firmly onto each of the drain and fill screws.\u003c\/li\u003e\n\u003cli\u003eReinstall the \u003cstrong\u003eupper (fill\/vent) screw first\u003c\/strong\u003e, but do not fully tighten. This prevents air from entering while you fill the gearcase.\u003c\/li\u003e\n\u003cli\u003eUsing a gear lube pump, fill the lower unit through the bottom drain hole until fluid flows out of the upper vent hole.\u003c\/li\u003e\n\u003cli\u003eInstall the \u003cstrong\u003ebottom (drain) screw\u003c\/strong\u003e and tighten it securely.\u003c\/li\u003e\n\u003cli\u003eRemove the gear lube pump and quickly reinstall the upper (fill\/vent) screw, tightening it securely.\u003c\/li\u003e\n\u003cli\u003eTighten both screws to the manufacturer's recommended torque specification. Do not overtighten, as this can damage the washer or gearcase.\u003c\/li\u003e\n\u003cli\u003eClean any excess oil and check for leaks after a few minutes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How can I confirm this washer fits my specific engine?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The best way is to match your engine's original part number to one of the numbers listed in our Part Number Cross-Reference table. You can also check your engine's model and year against the compatibility tables on this page.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the washer made from?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This washer is made from high-quality \u003cstrong\u003eNylon\u003c\/strong\u003e, designed to provide a durable and reliable seal that presses onto the screw securely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace my drain\/fill plug washers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: It is strongly recommended to use a new washer \u003cstrong\u003eevery time\u003c\/strong\u003e you change your lower unit gear lube. Reusing old washers can lead to improper sealing and water intrusion, which can cause catastrophic gearcase failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: OEM vs. Aftermarket?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n\u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":49568136954169,"sku":"2923*4","price":10.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Fill_and_Drain_Screw_Washer_for_Johnson_Evinrude_OMC_Engines__311598_-_JLM_MARINE-8287512.jpg?v=1755051975"},{"product_id":"cylinder-head-cover-gasket-for-johnson-evinrude-20-25-30-35-hp-327674","title":"Cylinder Head Cover Gasket – Fits Johnson\/Evinrude 20-35 HP Outboards (Replaces 327674, 324325, 777388)","description":"\u003ch2\u003eCylinder Head Cover Gasket – Fits Johnson\/Evinrude 20-35 HP Outboards (Replaces 327674, 324325, 777388)\u003c\/h2\u003e\n\u003cp\u003eThis cylinder head cover gasket is designed for \u003cstrong\u003eJohnson\/Evinrude 2-stroke 20-35 HP outboard motors\u003c\/strong\u003e manufactured between \u003cstrong\u003e1979 and 2005\u003c\/strong\u003e. It is engineered to meet or exceed original equipment specifications, ensuring a reliable seal.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for multiple OEM part numbers, including \u003cstrong\u003eJohnson\/Evinrude 327674, 324325, and 777388\u003c\/strong\u003e, providing broad compatibility across a range of engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured from high-quality, OEM-specification gasket material to prevent oil leaks.\u003c\/li\u003e\n\u003cli\u003eDesigned for a direct replacement fit to simplify installation.\u003c\/li\u003e\n\u003cli\u003eHelps maintain engine integrity and performance by ensuring a proper seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eSuperseded By\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e324325\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e777388\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3899\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWSM\u003c\/td\u003e\n\u003ctd\u003e505-16\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e33700\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMP\u003c\/td\u003e\n\u003ctd\u003e27-00939\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecmar\u003c\/td\u003e\n\u003ctd\u003eREC327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Johnson\/Evinrude owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eJohnson Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003e20HP\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1985-1997\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e25HP\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979-2005\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e30HP\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1985-2004\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e35HP\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979-1994\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003e25904R, 25905R, 25952R, 25953R\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003eE25RCSA, E25RLCSA, E25TECSA, E25TELCSA\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003eE25ECIB, E25ECIM, E25ELCIB, E25ELCIM, E25RCIM, E25RLCIM, E25RSA, E25RSLA, E25RWCIM, E25RWLCIM, E25TECIM, E25TELCIM\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1981\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003e35902A, 35903A, 35952A, 35953A\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003eE35ECSM, E35ELCSM, E35TCSM, E35TLESM\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003eE35ECIG, E35ELCG, E35RCIG, E35RLCIG\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1981\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003e25E79R, 25EL79R, 25R79R, 25RL79R\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003eJ25RCSA, J25RLCSA, J25TECSA, J25TELCSA\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003eJ25ECIB, J25ECIM, J25ELCIB, J25ELCIM, J25RCIM, J25RLCIM, J25RSA, J25RSLA, J25RWCIM, J25RWLCIM, J25TECIM, J25TELCIM\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1981\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003e35E79A, 35EL79A, 35R79A, 35RL79A\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003eJ35ECSM, J35ELCSM, J35RCSM, J35RLCSM\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003eJ35ECIG, J35ELCIG, J35RCIG, J35RLCIG\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1981\u003c\/td\u003e\n\u003ctd\u003e327674\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCylinder Head Cover Gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eDirect replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eOEM-specification gasket material\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduction Standards\u003c\/td\u003e\n\u003ctd\u003eManufactured in ISO9002 certified factory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Technical Attributes\u003c\/td\u003e\n\u003ctd\u003eDesigned to prevent oil leaks, maintain engine integrity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cp\u003e1 x \u003cspan style=\"color:red;\"\u003eCylinder Head Cover Gasket (327674)\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the engine is off, cool, and the battery is disconnected for safety.\u003c\/li\u003e\n\u003cli\u003eLocate and unfasten the bolts securing the cylinder head cover.\u003c\/li\u003e\n\u003cli\u003eCarefully remove the cover and the old gasket. Take note of the orientation.\u003c\/li\u003e\n\u003cli\u003eThoroughly clean both the cylinder head and cover mating surfaces. All old gasket material and residue must be removed.\u003c\/li\u003e\n\u003cli\u003ePosition the new gasket\n correctly on the cylinder head.\u003c\/li\u003e\n\u003cli\u003eReinstall the cover and tighten the bolts in the sequence and to the torque specified in your engine's service manual.\u003c\/li\u003e\n\u003cli\u003eReconnect the battery. After starting the engine, check carefully for any oil leaks around the cover.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm this gasket fits my engine?\u003c\/strong\u003e\u003cbr\u003e\nFirst, check your engine's model and year against the detailed compatibility table on this page. Second, verify your existing part number matches one of the cross-reference numbers listed, such as OEM part \u003cstrong\u003e327674\u003c\/strong\u003e or its predecessors \u003cstrong\u003e324325\u003c\/strong\u003e and \u003cstrong\u003e777388\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are common signs of a failing cylinder head cover gasket?\u003c\/strong\u003e\u003cbr\u003e\nKey indicators include visible oil leaks around the head cover, a distinct burning oil smell, unexplained oil loss, or poor engine performance. Replacing a faulty gasket is critical to prevent further engine damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to use sealant with this gasket?\u003c\/strong\u003e\u003cbr\u003e\nThis gasket is designed for a dry-fit installation. Applying sealants is generally not recommended unless specifically required by your engine's service manual, as it can interfere with proper sealing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM vs. Aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nThis listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nWe offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nThis product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n\u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":49568145735993,"sku":"2281","price":12.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Cylinder_Head_Cover_Gasket_for_Johnson_Evinrude_20_25_30_35_HP_327674_-_JLM_MARINE-8287517.jpg?v=1755400152"},{"product_id":"head-and-cover-gasket-for-johnson-evinrude-v4-88hp-90hp-100hp-110hp-115hp-140hp-318358","title":"Head and Cover Gasket Set – Fits Johnson\/Evinrude V4 85-140 HP (Replaces 318358, 318335)","description":"\u003ch2\u003eHead and Cover Gasket Set – Fits Johnson\/Evinrude V4 85-140 HP\u003c\/h2\u003e\n\u003cp\u003eThis head and cover gasket set is designed for \u003cstrong\u003eJohnson\/Evinrude 85-140 HP, V4 Crossflow, 2-Stroke outboard motors from 1973–1998\u003c\/strong\u003e. It provides a reliable seal for the cylinder head and exhaust cover, manufactured to meet or exceed original equipment specifications.\u003c\/p\u003e\n\u003cp\u003eThe set serves as a direct replacement for Johnson\/Evinrude head gasket \u003cstrong\u003e318358\u003c\/strong\u003e and cover gasket \u003cstrong\u003e318335\u003c\/strong\u003e, as well as Sierra part numbers 18-2956 and 18-2873-9.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct replacement for a straightforward installation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made from high-quality composite gasket material for durability and a proper seal.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e Contains both the cylinder head gasket and the exhaust cover gasket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eBrand\u003c\/th\u003e\n            \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e318335\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSierra\u003c\/td\u003e\n            \u003ctd\u003e18-2956\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSierra\u003c\/td\u003e\n            \u003ctd\u003e18-2873-9\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eGLM\u003c\/td\u003e\n            \u003ctd\u003e33540\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eMallory\u003c\/td\u003e\n            \u003ctd\u003e9-63828\u003c\/td\u003e\n        \u003c\/tr\u003e\n\t\t\u003ctr\u003e\n            \u003ctd\u003eMercury\u003c\/td\u003e\n            \u003ctd\u003e878877\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Johnson\/Evinrude owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eJohnson\/Evinrude Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFor Mercury owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eBrand\u003c\/th\u003e\n            \u003cth\u003eModel\u003c\/th\u003e\n            \u003cth\u003eRated HP\u003c\/th\u003e\n            \u003cth\u003eStroke\u003c\/th\u003e\n            \u003cth\u003eYears\u003c\/th\u003e\n            \u003cth\u003eOEM Part No.\u003c\/th\u003e\n\t\t\t\u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e85 HP\u003c\/td\u003e\n            \u003ctd\u003e85\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1973-1995\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e88 HP\u003c\/td\u003e\n            \u003ctd\u003e88\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1987-Up\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e90 HP\u003c\/td\u003e\n            \u003ctd\u003e90\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1981-1994\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e100 HP\u003c\/td\u003e\n            \u003ctd\u003e100\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1979-Up\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e110 HP\u003c\/td\u003e\n            \u003ctd\u003e110\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1986-1990\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e115 HP\u003c\/td\u003e\n            \u003ctd\u003e115\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1973-1998\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e135 HP\u003c\/td\u003e\n            \u003ctd\u003e135\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1973-1976\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e140 HP\u003c\/td\u003e\n            \u003ctd\u003e140\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1973-1984\u003c\/td\u003e\n            \u003ctd\u003e318358\u003c\/td\u003e\n\t\t\t\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eSpecification\u003c\/th\u003e\n            \u003cth\u003eValue\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eProduct Type\u003c\/td\u003e\n            \u003ctd\u003eHead and Cover Gasket Set\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eInstallation\u003c\/td\u003e\n            \u003ctd\u003eDirect replacement\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eFuel Type\u003c\/td\u003e\n            \u003ctd\u003eGasoline\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHousing Material\u003c\/td\u003e\n            \u003ctd\u003eComposite gasket material\u003c\/td\u003e\n        \u003c\/tr\u003e\n\t\t\u003ctr\u003e\n            \u003ctd\u003eOther Technical Attributes\u003c\/td\u003e\n            \u003ctd\u003eManufactured to OEM specifications using the exact same material as the originals\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\u003cspan style=\"color:red;\"\u003e1 x Head Gasket (Replaces 318358)\u003c\/span\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cspan style=\"color:red;\"\u003e1 x Cover Gasket (Replaces 318335)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafety First:\u003c\/strong\u003e Disconnect the battery and ensure the engine is cool.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDrain Fluids:\u003c\/strong\u003e Drain the engine coolant to prevent spills.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAccess Components:\u003c\/strong\u003e Remove the engine cowl and any components obstructing access to the cylinder head and exhaust cover.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRemove Old Gaskets:\u003c\/strong\u003e Carefully unbolt and remove the cylinder head and\/or exhaust cover. Remove the old gaskets.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClean Surfaces:\u003c\/strong\u003e Thoroughly clean both mating surfaces, ensuring they are free of old gasket material, oil, and debris.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstall New Gaskets:\u003c\/strong\u003e Position the new gaskets correctly. Do not use any sealant unless specified by the manufacturer.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReassemble:\u003c\/strong\u003e Reinstall the cover and\/or head. Tighten the bolts in the correct sequence and to the manufacturer's torque specifications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFinal Checks:\u003c\/strong\u003e Reconnect all components, refill the coolant, and reconnect the battery. Start the engine and check for any leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this set fits my V4 engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Start by checking your OEM part number against our cross-reference list. Then, verify your engine's HP and year falls within the ranges shown in the \"Compatible Engine Models\" table. For Johnson\/Evinrude engines, our serial number guide can help you pinpoint your exact model and year.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the common symptoms of a blown head or cover gasket?\u003c\/strong\u003e\u003cbr\u003e\nA: Signs of a faulty gasket include engine overheating, a noticeable loss of power or compression, milky or discolored oil, or visible water\/steam exiting the exhaust. These symptoms indicate a leak between the combustion chamber and cooling passages.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this one gasket or a full set?\u003c\/strong\u003e\u003cbr\u003e\nA: This is a complete set for the V4 Crossflow powerhead, containing one \u003cstrong\u003ecylinder head gasket\u003c\/strong\u003e (replaces OEM 318358) and one \u003cstrong\u003eexhaust cover gasket\u003c\/strong\u003e (replaces OEM 318335).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: OEM vs. Aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n    \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":49568164905273,"sku":"22GK034","price":32.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Head_and_Cover_Gasket_for_Johnson_Evinrude_V4_88HP_90HP_100HP_110HP_115HP_140HP______318358_-_JLM_MARINE-8287528.jpg?v=1755051972"},{"product_id":"head-and-cover-gasket-set-for-evinrude-johnson-18-20-25-28-30-35-hp-765012","title":"Head and Cover Gasket Set – Fits Johnson\/Evinrude 18-35 HP Outboards (Replaces 765012, 327674)","description":"\u003ch2\u003eHead and Cover Gasket Set – Fits Johnson\/Evinrude 18-35 HP Outboards (Replaces 765012, 327674)\u003c\/h2\u003e\n\u003cp\u003eThis head and cover gasket set is designed for Johnson\/Evinrude 18, 20, 25, 28, 30, and 35 HP 2-stroke outboard engines manufactured between 1979 and 2001.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for Johnson\/Evinrude part numbers \u003cstrong\u003e327674, 324324, 329419, and 765012\u003c\/strong\u003e, as well as Sierra aftermarket parts \u003cstrong\u003e18-3899 and 18-3803\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eEngineered for a direct fit, ensuring a reliable seal.\u003c\/li\u003e\n    \u003cli\u003eManufactured from high-quality materials to meet or exceed OEM specifications.\u003c\/li\u003e\n    \u003cli\u003eProvides essential components for cylinder head and cover repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eBrand\u003c\/th\u003e\n            \u003cth\u003ePart Number\u003c\/th\u003e\n\u003ch6\u003e\u003c\/h6\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e765012\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e327674\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e324324\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e329419\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSierra\u003c\/td\u003e\n            \u003ctd\u003e18-3899\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSierra\u003c\/td\u003e\n            \u003ctd\u003e18-3803\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Johnson\/Evinrude owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eJohnson Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth\u003eBrand\u003c\/th\u003e\n                \u003cth\u003eModel\u003c\/th\u003e\n                \u003cth\u003eRated HP\u003c\/th\u003e\n                \u003cth\u003eStroke\u003c\/th\u003e\n                \u003cth\u003eYears\u003c\/th\u003e\n                \u003cth\u003eOEM Part No.\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                \u003ctd\u003eVarious\u003c\/td\u003e\n                \u003ctd\u003e18\u003c\/td\u003e\n                \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                \u003ctd\u003e1979–2001\u003c\/td\u003e\n                \u003ctd\u003e765012, 327674\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                \u003ctd\u003eVarious\u003c\/td\u003e\n                \u003ctd\u003e20\u003c\/td\u003e\n                \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                \u003ctd\u003e1979–2001\u003c\/td\u003e\n                \u003ctd\u003e765012, 327674\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                \u003ctd\u003eVarious\u003c\/td\u003e\n                \u003ctd\u003e25\u003c\/td\u003e\n                \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                \u003ctd\u003e1979–2001\u003c\/td\u003e\n                \u003ctd\u003e765012, 327674\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                \u003ctd\u003eVarious\u003c\/td\u003e\n                \u003ctd\u003e28\u003c\/td\u003e\n                \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                \u003ctd\u003e1979–2001\u003c\/td\u003e\n                \u003ctd\u003e765012, 327674\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                \u003ctd\u003eVarious\u003c\/td\u003e\n                \u003ctd\u003e30\u003c\/td\u003e\n                \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                \u003ctd\u003e1979–2001\u003c\/td\u003e\n                \u003ctd\u003e765012, 327674\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                \u003ctd\u003eVarious\u003c\/td\u003e\n                \u003ctd\u003e35\u003c\/td\u003e\n                \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                \u003ctd\u003e1979–2001\u003c\/td\u003e\n                \u003ctd\u003e765012, 327674\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eSpecification\u003c\/th\u003e\n            \u003cth\u003eValue\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGasket Set\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eDirect OEM replacement\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eOEM-spec materials\u003c\/td\u003e\n        \u003c\/tr\u003e\n         \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eOther Technical Attributes\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eManufactured to OEM specifications in ISO9002 certified factory\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cp\u003e1 x Head and Cover Gasket Set (Replaces \u003cspan style=\"color:red;\"\u003e765012, 327674\u003c\/span\u003e)\u003c\/p\u003e\n\n\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafety First:\u003c\/strong\u003e Disconnect the battery and spark plug wires before beginning work.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDrain Fluids:\u003c\/strong\u003e Drain the engine coolant completely to avoid spills.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAccess the Head:\u003c\/strong\u003e Remove the engine cover and any components obstructing access to the cylinder head bolts.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRemove Head Bolts:\u003c\/strong\u003e Carefully loosen and remove the cylinder head bolts. Follow the reverse of the manufacturer's tightening sequence.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLift the Head:\u003c\/strong\u003e Gently lift the cylinder head off the engine block. Avoid using pry bars that could damage the mating surfaces.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClean Surfaces:\u003c\/strong\u003e Remove the old gasket. Thoroughly clean both the cylinder head and engine block surfaces until they are free of any old gasket material or debris.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePosition New Gasket:\u003c\/strong\u003e Place the new head and cover gaskets correctly onto the engine block.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReinstall Head:\u003c\/strong\u003e Carefully place the cylinder head back onto the block and install the head bolts.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTorque Bolts:\u003c\/strong\u003e Torque the head bolts to the manufacturer's specified values using the correct tightening sequence to ensure an even seal.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReassemble:\u003c\/strong\u003e Reinstall all previously removed components.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRefill and Check:\u003c\/strong\u003e Refill the engine with coolant, then reconnect the spark plug wires and battery.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTest:\u003c\/strong\u003e Start the engine and carefully check for any coolant, fuel, or exhaust leaks around the gasket area.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm this gasket set fits my engine?\u003c\/strong\u003e\u003cbr\u003e\nThis set is specifically for Johnson\/Evinrude 18-35 HP, 2-stroke outboards made between 1979 and 2001. The best way to confirm fitment is to match your engine's original part number to the ones listed here: \u003cstrong\u003eOEM (765012, 327674)\u003c\/strong\u003e or \u003cstrong\u003eSierra (18-3899, 18-3803)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the signs that my head gasket needs replacing?\u003c\/strong\u003e\u003cbr\u003e\nCommon symptoms of a failed head gasket include engine overheating, a noticeable loss of power or compression, milky or discolored oil, and white smoke coming from the exhaust.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs everything I need for the job included?\u003c\/strong\u003e\u003cbr\u003e\nThis package contains the head and cover gasket set. Please review the product images and the 'Package Contents' section to ensure it includes all parts necessary for your specific repair, as other seals or gaskets may be required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM vs. Aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nThis listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nWe offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nThis product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n    \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":49568172245305,"sku":"22GK036","price":29.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Head_and_Cover_Gasket_Set_for_Evinrude_Johnson_18_20_25_28_30_35_HP__765012_-_JLM_MARINE-8287534.jpg?v=1755051970"},{"product_id":"powerhead-gasket-set-for-johnson-evinrude-outboard-18-35-hp-2-stroke-engines-0392567-389206-392615-sierra-18-4307","title":"Powerhead Gasket Set – Fits Johnson\/Evinrude 18-35 HP 2-Stroke Outboards (Replaces 0392567, 389206, 392615, 433941)","description":"\u003ch2\u003ePowerhead Gasket Set – Fits Johnson\/Evinrude 18-35 HP 2-Stroke Outboards (Replaces 0392567, 389206, 392615, 433941)\u003c\/h2\u003e\n\u003cp\u003eThis powerhead gasket set is designed for a wide range of \u003cstrong\u003eJohnson\/Evinrude 18-35 HP 2-stroke outboard engines\u003c\/strong\u003e manufactured between 1979 and 2005, including specific JET models from 1995–1998. It provides a reliable seal for critical engine components to restore performance and prevent leaks.\u003c\/p\u003e\n\u003cp\u003eThis kit serves as a direct replacement for several aftermarket part numbers, including \u003cstrong\u003eSierra 18-4307, GLM 39420, and Mallory Marine 9-64114\u003c\/strong\u003e, ensuring broad compatibility.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eIncludes a complete set of gaskets for the cylinder head, powerhead base, and related components.\u003c\/li\u003e\n    \u003cli\u003eDesigned for use with gasoline-fueled engines.\u003c\/li\u003e\n    \u003cli\u003eInstallation is engine-specific; professional installation is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eBrand\u003c\/th\u003e\n            \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e0392567, 389206, 392615, 433941\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSierra\u003c\/td\u003e\n            \u003ctd\u003e18-4307\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eGLM\u003c\/td\u003e\n            \u003ctd\u003e39420\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eMallory Marine\u003c\/td\u003e\n            \u003ctd\u003e9-64114\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Johnson\/Evinrude owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eJohnson\/Evinrude Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eBrand\u003c\/th\u003e\n            \u003cth\u003eModel\u003c\/th\u003e\n            \u003cth\u003eRated HP\u003c\/th\u003e\n            \u003cth\u003eStroke\u003c\/th\u003e\n            \u003cth\u003eYears\u003c\/th\u003e\n            \u003cth\u003eOEM Part No.\u003c\/th\u003e\n            \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e18 HP JET\u003c\/td\u003e\n            \u003ctd\u003e18\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1995-1998\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e20 HP\u003c\/td\u003e\n            \u003ctd\u003e20\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1985-1999\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e25 HP\u003c\/td\u003e\n            \u003ctd\u003e25\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1979-2005\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e28 HP\u003c\/td\u003e\n            \u003ctd\u003e28\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1986-1996\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e30 HP\u003c\/td\u003e\n            \u003ctd\u003e30\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1984-2003\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003e35 HP\u003c\/td\u003e\n            \u003ctd\u003e35\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1979-1988\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003eCrossflow Models\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003eE35ECND\u003c\/td\u003e\n            \u003ctd\u003e35\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1982\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003eCYLINDER \u0026amp; CRANKCASE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003eE35ELCND\u003c\/td\u003e\n            \u003ctd\u003e35\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1982\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003eCYLINDER \u0026amp; CRANKCASE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003eE35RCND\u003c\/td\u003e\n            \u003ctd\u003e35\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1982\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003eCYLINDER \u0026amp; CRANKCASE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003eE35RLCND\u003c\/td\u003e\n            \u003ctd\u003e35\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1982\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003eCYLINDER \u0026amp; CRANKCASE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003eE35TELCNB\u003c\/td\u003e\n            \u003ctd\u003e35\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1982\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003eCYLINDER \u0026amp; CRANKCASE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n            \u003ctd\u003eVarious 25-35 HP models\u003c\/td\u003e\n            \u003ctd\u003e25-35\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1983-1988\u003c\/td\u003e\n            \u003ctd\u003e0392567\/389206\/392615\/433941\u003c\/td\u003e\n            \u003ctd\u003eIncluding E35ECTS, E35ELCTS, E35RCTS, E35RLCTS, E35TELCTS, E30ECRR, E30ELCRR, E35ECRR, E35ELCRR, E35RCRR, E35RLCRR, E35TELCRR\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eSpecification\u003c\/th\u003e\n            \u003cth\u003eValue\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePowerhead Gasket Set\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eEngine-specific\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eFuel Type\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eGasoline\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eOther Technical Attributes\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eComplete gasket set for cylinder head, powerhead base, and related engine components\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e1 x Powerhead Gasket Set (\u003cspan style=\"color:red;\"\u003e0392567\/389206\/392615\/433941\u003c\/span\u003e) containing:\n        \u003cul\u003e\n            \u003cli\u003e2 x Exhaust Manifold Gasket (Sierra 18-0106)\u003c\/li\u003e\n            \u003cli\u003e1 x Carburetor Gasket (Sierra 18-0118)\u003c\/li\u003e\n            \u003cli\u003e1 x Inner Exhaust Cover Gasket (Sierra 18-0126)\u003c\/li\u003e\n            \u003cli\u003e1 x Fuel Pump Gasket (Sierra 18-0850)\u003c\/li\u003e\n            \u003cli\u003e1 x Bypass Gasket (Sierra 18-0971)\u003c\/li\u003e\n            \u003cli\u003e1 x Leafplate Gasket (Sierra 18-0981)\u003c\/li\u003e\n            \u003cli\u003e1 x Powerhead Base Gasket (Sierra 18-2852)\u003c\/li\u003e\n            \u003cli\u003e1 x Leaf Plate Gasket (Sierra 18-2862)\u003c\/li\u003e\n            \u003cli\u003e1 x Head Gasket (Sierra 18-3803)\u003c\/li\u003e\n            \u003cli\u003e1 x Water Cover Gasket (Sierra 18-3899)\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafety First:\u003c\/strong\u003e Ensure the engine is completely turned off, cool to the touch, and disconnected from the battery.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDrain Fluids:\u003c\/strong\u003e Drain the engine coolant and oil to prevent spills during disassembly.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDisassemble Components:\u003c\/strong\u003e Carefully remove intake and exhaust manifolds, the cylinder head, and any other components blocking access to the powerhead gaskets.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClean Surfaces:\u003c\/strong\u003e Thoroughly remove all traces of old gasket material and residue from the engine block and component mating surfaces. A plastic scraper and a suitable solvent are recommended.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePosition New Gaskets:\u003c\/strong\u003e Place the new gaskets into their correct positions. Ensure they are aligned perfectly with all bolt holes and passages.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReassemble:\u003c\/strong\u003e Reinstall the components in the reverse order of removal.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTorque Bolts:\u003c\/strong\u003e Tighten all bolts in the sequence and to the torque values specified by the engine manufacturer. This is critical for ensuring a proper seal.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRefill and Check:\u003c\/strong\u003e Refill the engine with coolant and oil. Reconnect the battery, start the engine, and check carefully for any signs of leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this gasket set fits my specific engine model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The best way is to check the 'Compatible Engine Models' table on this page. Your engine's model, horsepower (HP), and year range should be listed. You can also use our \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eJohnson\/Evinrude Serial Number Guide\u003c\/a\u003e to verify your model details before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the common signs that my powerhead gaskets need to be replaced?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Key symptoms include a noticeable loss of engine compression, milky or discolored oil (indicating water intrusion), visible coolant or oil leaks from the seams of the engine block, and frequent engine overheating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a complete kit for a powerhead rebuild?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This set includes all the essential gaskets required to reseal the powerhead assembly, including gaskets for the cylinder head, powerhead base, exhaust, and intake. Please review the 'Package Contents' list for a detailed breakdown of all included parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: OEM vs. Aftermarket?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n    \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":49568315343161,"sku":"23GK603","price":36.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Powerhead_Gasket_Set_for_Johnson_Evinrude_Outboard_18-35_HP_2_Stroke_Engines___________0392567_389206__392615__Sierra_18-4307_-_JLM_MARINE-8287604.jpg?v=1755051951"}],"url":"https:\/\/jlmmarine.com\/collections\/johnson-evinrude-gasket.oembed","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}