{"product_id":"393630-water-pump-repair-kit-for-johnson-evinrude-jlm-marine","title":"393630 Water Pump Repair Kit for Johnson\/Evinrude | JLM Marine","description":"\u003ch2\u003e393630 Water Pump Repair Kit for Johnson\/Evinrude – Complete Maintenance Solution\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive water pump repair kit is engineered for Johnson\/Evinrude outboard motors ranging from \u003cstrong\u003e20HP to 35HP\u003c\/strong\u003e across model years \u003cstrong\u003e1980–2005\u003c\/strong\u003e. Designed to restore reliable cooling system performance, this kit ensures your engine operates at optimal temperature under demanding marine conditions.\u003c\/p\u003e\n\n\u003cp\u003eDirect replacement for OEM part number \u003cstrong\u003e393630\u003c\/strong\u003e, this kit provides all essential components for a complete cooling and lubrication system service in one package.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eIncludes water pump repair kit, thermostat, fuel filter, gaskets, and gear oil pump for comprehensive maintenance\u003c\/li\u003e\n\u003cli\u003eFits multiple horsepower ranges across two decades of Johnson\/Evinrude models\u003c\/li\u003e\n\u003cli\u003eAll components meet OEM specifications for reliable, long-lasting performance\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\"\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\u003e393630\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 Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\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\u003e20HP\u003c\/td\u003e\n\u003ctd\u003e1985-1998\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\u003e1985-2005\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\u003e1984-2005\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\u003e1980-1996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\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\u003e393630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brand\u003c\/td\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorsepower Range\u003c\/td\u003e\n\u003ctd\u003e20HP - 35HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear Range\u003c\/td\u003e\n\u003ctd\u003e1980-2005\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 complete maintenance kit includes the following components:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e393630 Water Pump Repair Kit\u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5005440 Thermostat\u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0398327 Fuel Filter\u003c\/strong\u003e × 1  \u003ca href=\"https:\/\/jlmmarine.com\/products\/inline-fuel-filter-for-yamaha-9-9-40-hp-65w-24251-00\" target=\"_blank\"\u003eView Part →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0327674 Cylinder Head Cover Gasket\u003c\/strong\u003e × 1  \u003ca href=\"https:\/\/jlmmarine.com\/products\/cylinder-head-cover-gasket-for-johnson-evinrude-20-25-30-35-hp-327674\" target=\"_blank\"\u003eView Part →\u003c\/a\u003e\n\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 Disconnect the fuel line and remove the lower unit from the outboard motor according to your service manual. Drain all existing gear oil completely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove Old Components:\u003c\/strong\u003e Disassemble the existing water pump housing and carefully remove the old impeller, gaskets, and seals. Clean all mating surfaces thoroughly to ensure proper sealing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Water Pump Kit:\u003c\/strong\u003e Follow the instructions included with part 393630 to install the new impeller, plate, and housing gaskets. Apply marine-grade grease to the impeller before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplace Thermostat:\u003c\/strong\u003e Remove the old thermostat housing and install the new 5005440 thermostat with a fresh gasket. Ensure proper orientation per your engine's specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Cylinder Head Gasket:\u003c\/strong\u003e Replace the cylinder head cover gasket (0327674) ensuring proper alignment with all bolt holes. Torque fasteners to manufacturer specifications in a cross pattern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplace Drain Screw Gaskets:\u003c\/strong\u003e Install both new 311598 drain screw gaskets on the lower unit drain and fill plugs. Do not overtighten to avoid crushing the gaskets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Fuel Filter:\u003c\/strong\u003e Replace the existing fuel filter with the new 0398327 filter in the fuel line. Ensure the arrow on the filter points toward the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd Gear Oil:\u003c\/strong\u003e Using the 24OP149 gear oil pump, fill the lower unit with the recommended marine gear oil through the lower drain hole until oil appears at the upper vent hole.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReassemble Lower Unit:\u003c\/strong\u003e Reinstall the lower unit to the motor, ensuring the driveshaft engages properly. Tighten all mounting bolts to specified torque values.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal Checks:\u003c\/strong\u003e Reconnect the fuel line and inspect all connections for leaks. Start the engine and verify water flow from the telltale indicator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Run:\u003c\/strong\u003e Run the engine in a test tank or on-water for 10–15 minutes, monitoring operating temperature and water pump discharge. Check for any fuel or gear oil leaks.\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 kit fits my specific Johnson\/Evinrude engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Cross-reference your engine's horsepower and year with the compatibility table above. Verify your original water pump uses OEM part number 393630, and use the Johnson Serial Number Guide linked above to confirm your model year.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the water pump and these components?\u003c\/strong\u003e\u003cbr\u003e\nA: Water pump impellers should typically be replaced every 2–3 years or 200–300 hours of operation, whichever comes first. The fuel filter should be changed annually, while gaskets and the thermostat should be inspected during each water pump service and replaced as needed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my water pump needs replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include reduced or no water discharge from the telltale indicator, engine overheating, weak water stream, or unusual noise from the lower unit. If you notice any of these signs, inspect and replace the water pump immediately to prevent engine damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this kit myself or do I need a professional?\u003c\/strong\u003e\u003cbr\u003e\nA: If you have mechanical experience and the proper tools, this installation can be completed in 2–3 hours. However, it requires lower unit removal and precise torque specifications. Professional installation is recommended if you're unfamiliar with outboard service procedures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this kit include everything I need for a complete water pump service?\u003c\/strong\u003e\u003cbr\u003e\nA: This package includes the water pump repair kit and related maintenance components (thermostat, fuel filter, gaskets, and gear oil pump). You will need to supply marine-grade grease for the impeller and gear oil for refilling the lower unit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between OEM and aftermarket parts?\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":52418176418105,"sku":"25KO208","price":78.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/kit-25KO208_1d9f80ee-b92c-4959-be36-0d48cd2daf7f.png?v=1776686731","url":"https:\/\/jlmmarine.com\/ru\/products\/393630-water-pump-repair-kit-for-johnson-evinrude-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}