{"product_id":"338222-head-gasket-for-evinrude-johnson-jlm-marine","title":"338222 Head Gasket for Evinrude Johnson | JLM Marine","description":"\u003ch2\u003eHead Gasket for Evinrude Johnson 9.9HP 15HP (255cc) – 1993-1999\u003c\/h2\u003e\n\n\u003cp\u003eThis cylinder head gasket is designed to fit Johnson and Evinrude marine outboard engines, specifically the \u003cstrong\u003e9.9HP and 15HP (255cc)\u003c\/strong\u003e models manufactured between \u003cstrong\u003e1993 and 1999\u003c\/strong\u003e. Engineered to deliver reliable sealing performance, this gasket ensures proper compression and prevents coolant or combustion leaks in your engine's head assembly.\u003c\/p\u003e\n\n\u003cp\u003eThis aftermarket replacement directly replaces OEM part number \u003cstrong\u003e338222\u003c\/strong\u003e, providing a cost-effective solution without compromising on quality or fitment.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePrecision-cut gasket material for optimal sealing\u003c\/li\u003e\n  \u003cli\u003eDirect fit for Johnson\/Evinrude 255cc engines\u003c\/li\u003e\n  \u003cli\u003eEssential component for cylinder head service and rebuild\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%; border-collapse:collapse;\"\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\u003e338222\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\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\" target=\"_blank\" rel=\"nofollow noopener\"\u003eJohnson\/Evinrude Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n  \u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%; border-collapse:collapse;\"\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\u003eDisplacement\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\u003e9.9, 15\u003c\/td\u003e\n        \u003ctd\u003e9.9HP, 15HP\u003c\/td\u003e\n        \u003ctd\u003e255cc\u003c\/td\u003e\n        \u003ctd\u003e1993-1999\u003c\/td\u003e\n        \u003ctd\u003e338222\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\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%; border-collapse:collapse;\"\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\u003eOEM Part Number\u003c\/td\u003e\n      \u003ctd\u003e338222\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApplication\u003c\/td\u003e\n      \u003ctd\u003eCylinder Head Gasket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Type\u003c\/td\u003e\n      \u003ctd\u003eJohnson\/Evinrude Outboard\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDisplacement\u003c\/td\u003e\n      \u003ctd\u003e255cc\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHorsepower\u003c\/td\u003e\n      \u003ctd\u003e9.9HP, 15HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eYear Range\u003c\/td\u003e\n      \u003ctd\u003e1993-1999\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1 × Cylinder Head Gasket (338222)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and remove the engine cover to access the cylinder head.\u003c\/li\u003e\n  \u003cli\u003eDrain the coolant system completely to prevent spills during disassembly.\u003c\/li\u003e\n  \u003cli\u003eRemove the cylinder head bolts in a crisscross pattern to avoid warping. Carefully lift off the cylinder head assembly.\u003c\/li\u003e\n  \u003cli\u003eThoroughly clean both the cylinder head and engine block mating surfaces, removing all old gasket material and debris. Use a gasket scraper and solvent as needed.\u003c\/li\u003e\n  \u003cli\u003eInspect the cylinder head for cracks, warping, or damage. Resurface or replace if necessary.\u003c\/li\u003e\n  \u003cli\u003ePosition the new head gasket on the engine block, ensuring all bolt holes and water passages align correctly.\u003c\/li\u003e\n  \u003cli\u003eCarefully place the cylinder head back onto the engine block, aligning it with the dowel pins.\u003c\/li\u003e\n  \u003cli\u003eInstall the cylinder head bolts finger-tight in a crisscross pattern.\u003c\/li\u003e\n  \u003cli\u003eTorque the head bolts to the manufacturer's specifications in the recommended sequence (typically starting from the center and working outward).\u003c\/li\u003e\n  \u003cli\u003eRefill the cooling system with fresh coolant and check for proper levels.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and reinstall the engine cover.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and check for leaks around the cylinder head. Allow the engine to reach operating temperature and recheck for any seepage.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this gasket fits my engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Cross-reference your engine's serial number with the compatibility table above. This gasket fits Johnson\/Evinrude 9.9HP and 15HP (255cc) models from 1993 to 1999. If your original part number is 338222, this is a direct replacement.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my cylinder head gasket needs replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include coolant leaks around the cylinder head, white smoke from the exhaust, engine overheating, loss of compression, or coolant mixing with engine oil. If you notice any of these issues, inspect the head gasket immediately.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to resurface the cylinder head when replacing the gasket?\u003c\/strong\u003e\u003cbr\u003e\nA: It's recommended to check the cylinder head for warping using a straight edge and feeler gauge. If the head is warped beyond manufacturer specifications, it should be resurfaced by a machine shop before installing the new gasket.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What torque specifications should I use for the head bolts?\u003c\/strong\u003e\u003cbr\u003e\nA: Always consult your engine's service manual for exact torque specifications and tightening sequence. Proper torque is critical to prevent gasket failure and ensure even compression across the sealing surface.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM gasket or 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\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\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\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\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":51981000933689,"sku":"23GT340","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_92762ab4-a249-4e85-8c07-6d3ccf22f935.jpg?v=1772414205","url":"https:\/\/jlmmarine.com\/es\/products\/338222-head-gasket-for-evinrude-johnson-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}