{"product_id":"394711-service-kit-for-johnson-evinrude-9-9hp-10hp-15hp-jlm-marine","title":"394711 Service Kit for Johnson Evinrude 9.9HP 10HP 15HP | JLM Marine","description":"\u003ch2\u003e394711 Service Kit for Johnson Evinrude 9.9HP 10HP 15HP\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive service kit is designed for Johnson and Evinrude outboard engines rated at \u003cstrong\u003e9.9HP, 10HP, and 15HP\u003c\/strong\u003e, covering model years \u003cstrong\u003e1974–2007\u003c\/strong\u003e. It provides essential maintenance components to keep your engine running reliably season after season.\u003c\/p\u003e\n\n\u003cp\u003eThis kit directly replaces OEM part number \u003cstrong\u003e394711\u003c\/strong\u003e and includes all critical service items for routine maintenance intervals.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eComplete service package with water pump repair kit, fuel filter, thermostat, drain screw gaskets, and gear oil pump\u003c\/li\u003e\n  \u003cli\u003eCovers over three decades of Johnson\/Evinrude 9.9–15HP models (1974–2007)\u003c\/li\u003e\n  \u003cli\u003eSimplifies maintenance by bundling all essential service components in one kit\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=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003ePart Number\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\u003e394711\u003c\/td\u003e\n      \u003ctd\u003eOEM Service Kit\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\" rel=\"nofollow noopener\" target=\"_blank\"\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=\"border-collapse:collapse; width:100%;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eYears\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, 10, 15\u003c\/td\u003e\n        \u003ctd\u003e1974–2007\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=\"border-collapse:collapse; width:100%;\"\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\u003e394711\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Brands\u003c\/td\u003e\n      \u003ctd\u003eJohnson, Evinrude\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Horsepower\u003c\/td\u003e\n      \u003ctd\u003e9.9HP, 10HP, 15HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eModel Years\u003c\/td\u003e\n      \u003ctd\u003e1974–2007\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKit Type\u003c\/td\u003e\n      \u003ctd\u003eComplete Service Kit\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\u003cp\u003eThis service kit includes the following components:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e394711 Water Pump Repair Kit\u003c\/strong\u003e\u003c\/span\u003e × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e5032238 Fuel Filter\u003c\/strong\u003e\u003c\/span\u003e × 1 \u003ca href=\"https:\/\/jlmmarine.com\/products\/fuel-filter-fits-johnson-evinrude-4-70-hp-suzuki-outboards-replaces-5032238-15410-98500\" target=\"_blank\"\u003eView Part →\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e394411 Thermostat\u003c\/strong\u003e\u003c\/span\u003e × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e311598 Drain Screw Gasket\u003c\/strong\u003e × 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24OP149 Gear Oil Pump\u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Gather necessary tools (screwdrivers, wrenches, socket set) and place the engine in a stable, accessible position. Disconnect the fuel line and remove the engine cowling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Pump Service:\u003c\/strong\u003e Remove the lower unit by loosening the mounting bolts. Disassemble the water pump housing and replace all components from the water pump repair kit (impeller, gaskets, seals, and wear plate).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermostat Replacement:\u003c\/strong\u003e Locate the thermostat housing on the cylinder head and remove the cover bolts. Replace the old thermostat with the new 394411 unit, ensuring proper orientation, and install a new gasket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Filter Installation:\u003c\/strong\u003e Locate the inline fuel filter in the fuel line. Disconnect the fuel lines and replace the old filter with the new 5032238 fuel filter, ensuring proper flow direction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrain Screw Gaskets:\u003c\/strong\u003e When draining and refilling gear oil, replace both drain screw gaskets (311598) to prevent leaks. Tighten drain screws to manufacturer specifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear Oil Service:\u003c\/strong\u003e Use the included 24OP149 gear oil pump to refill the lower unit with fresh gear oil. Fill through the lower drain hole until oil appears at the upper vent hole, then install both plugs with new gaskets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReassembly:\u003c\/strong\u003e Reinstall the lower unit, ensuring proper alignment of the driveshaft and water tube. Torque all mounting bolts to specifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal Checks:\u003c\/strong\u003e Reconnect the fuel line and reinstall the cowling. Start the engine in a test tank or on the water and verify proper water flow from the cooling system telltale.\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 service kit fits my specific Johnson or Evinrude engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Verify that your engine is a 9.9HP, 10HP, or 15HP Johnson\/Evinrude model manufactured between 1974 and 2007. Cross-reference your existing part number 394711 or consult your engine's service manual to confirm compatibility.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I perform this service on my outboard?\u003c\/strong\u003e\u003cbr\u003e\nA: Most manufacturers recommend servicing the water pump, thermostat, and fuel system annually or every 100 hours of operation, whichever comes first. Gear oil should be changed at least once per season or if contamination is suspected.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my water pump or thermostat needs replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include reduced water flow from the telltale, engine overheating, steam from the engine compartment, or inconsistent operating temperature. If you notice any of these issues, inspect and replace water pump and thermostat components immediately.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this kit myself, or do I need a marine mechanic?\u003c\/strong\u003e\u003cbr\u003e\nA: If you have mechanical experience and the proper tools, you can perform this service yourself by following the installation guide and your engine's service manual. However, professional installation is recommended if you're unfamiliar with outboard maintenance procedures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between this aftermarket kit and the OEM Johnson\/Evinrude kit?\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":52418176385337,"sku":"25KO207","price":68.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/kit-25KO207_6fd18c66-13a8-4513-ba37-5b62ddb530fc.png?v=1776686728","url":"https:\/\/jlmmarine.com\/es\/products\/394711-service-kit-for-johnson-evinrude-9-9hp-10hp-15hp-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}