{"product_id":"632-w006a-00-water-pump-repair-kit-for-yamaha-40hp-50hp-2-stroke-jlm-marine","title":"632-W006A-00 Water Pump Repair Kit for Yamaha 40HP 50HP 2-Stroke | JLM Marine","description":"\u003ch2\u003e632-W006A-00 Water Pump Repair Kit for Yamaha 40HP 50HP 2-Stroke | JLM Marine\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive water pump repair kit is engineered for Yamaha 2-stroke 3-cylinder outboard engines rated at 40HP and 50HP, covering model years 1995–2019. It provides all essential components to restore your engine's cooling system to optimal performance, ensuring reliable operation on the water.\u003c\/p\u003e\n\n\u003cp\u003eDesigned as a direct replacement for OEM part number \u003cstrong\u003e632-W006A-00\u003c\/strong\u003e, this kit consolidates critical wear items and sealing components into a single, convenient package. Whether you're performing routine maintenance or addressing overheating issues, this kit delivers the parts you need for a complete water pump service.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes \u003cstrong\u003e15 components\u003c\/strong\u003e: impeller, wear plate, gaskets, o-ring, thermostat, fuel filter, gear oil pump, and hardware\u003c\/li\u003e\n  \u003cli\u003eFits Yamaha 40HP and 50HP 2-stroke 3-cylinder engines (1995–2019)\u003c\/li\u003e\n  \u003cli\u003eComplete rebuild solution for cooling system maintenance and repair\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    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eYamaha\u003c\/td\u003e\n      \u003ctd\u003e632-W006A-00\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 Yamaha owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/yamaha-outboard-serial-number-guide-2025\" rel=\"nofollow noopener\" target=\"_blank\"\u003eYamaha Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/yamaha-outboard-parts-diagrams-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eYamaha Parts Diagrams \u0026amp; Catalog\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\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eCylinder\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\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e40HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e3 Cylinder\u003c\/td\u003e\n        \u003ctd\u003e1995-2016\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e50HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e3 Cylinder\u003c\/td\u003e\n        \u003ctd\u003e1995-2019\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  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Part Number\u003c\/td\u003e\n      \u003ctd\u003e632-W006A-00\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Type\u003c\/td\u003e\n      \u003ctd\u003e2-Stroke, 3 Cylinder\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRated Horsepower\u003c\/td\u003e\n      \u003ctd\u003e40HP, 50HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApplicable Years\u003c\/td\u003e\n      \u003ctd\u003e1995-2019\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKit Type\u003c\/td\u003e\n      \u003ctd\u003eWater Pump Repair 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 comprehensive repair kit includes \u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e15 precision-engineered components\u003c\/strong\u003e\u003c\/span\u003e for complete water pump service:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e6H3-44352-00\u003c\/strong\u003e Impeller × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e63D-44323-00\u003c\/strong\u003e Plate, Wear × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e63D-44322-00\u003c\/strong\u003e Cup, Insert × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e63D-44316-00\u003c\/strong\u003e Gasket × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e93210-59MG7\u003c\/strong\u003e O-ring × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90280-03024\u003c\/strong\u003e Key × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e63D-44312-00\u003c\/strong\u003e Cover × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e663-44366-00\u003c\/strong\u003e Grommet × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90119-08M15\u003c\/strong\u003e Bolt × 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e61N-24560-00\u003c\/strong\u003e Fuel Filter × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e6E5-12411-30\u003c\/strong\u003e Thermostat × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e6J8-12414-A0\u003c\/strong\u003e Thermostat Gasket × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90430-08020\u003c\/strong\u003e Drain Gasket × 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e91490-30025\u003c\/strong\u003e Cotter Pin × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24OP149\u003c\/strong\u003e Gear Oil Pump × 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\u003ePrepare the workspace:\u003c\/strong\u003e Disconnect the battery and gather necessary tools including screwdrivers, wrenches, and a drain pan.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccess the water pump:\u003c\/strong\u003e Remove the lower unit from the outboard engine following manufacturer guidelines. Drain any remaining gear oil into the pan.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove the old pump housing:\u003c\/strong\u003e Unbolt the existing water pump cover using the appropriate socket. Carefully pull the housing free from the drive shaft.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtract worn components:\u003c\/strong\u003e Remove the old impeller, wear plate, insert cup, and gaskets. Inspect the pump housing for damage or corrosion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean all surfaces:\u003c\/strong\u003e Thoroughly clean the pump housing and mating surfaces with a non-abrasive cleaner to ensure proper sealing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall the insert cup and wear plate:\u003c\/strong\u003e Position the new insert cup (63D-44322-00) and wear plate (63D-44323-00) into the housing with correct orientation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLubricate and install the impeller:\u003c\/strong\u003e Apply marine-grade grease to the new impeller (6H3-44352-00) blades. Install it onto the drive shaft with blades oriented in the correct rotation direction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall gaskets and o-ring:\u003c\/strong\u003e Place the new gasket (63D-44316-00) and o-ring (93210-59MG7) into their respective positions, ensuring proper seating.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReassemble the pump housing:\u003c\/strong\u003e Install the new cover (63D-44312-00) and grommet (663-44366-00). Secure with the four new bolts (90119-08M15), tightening in a cross pattern.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall thermostat components:\u003c\/strong\u003e Replace the thermostat (6E5-12411-30) and thermostat gasket (6J8-12414-A0) in the powerhead. Replace drain gaskets (90430-08020) and secure the cotter pin (91490-30025).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace filters and oil pump:\u003c\/strong\u003e Install the new fuel filter (61N-24560-00) and gear oil pump (24OP149) according to service manual specifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReassemble and test:\u003c\/strong\u003e Reattach the lower unit to the engine, refill with fresh gear oil, reconnect the battery, and perform a water test to verify proper cooling flow and operation.\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 know if my water pump needs to be replaced?\u003c\/strong\u003e\u003cbr\u003e\nA: Common signs include overheating alarms, reduced water flow from the tell-tale (indicator stream), steam from the engine, or weak discharge. If your engine is running hotter than normal or you notice decreased water pressure, it's time to inspect and likely replace the water pump components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace my water pump impeller?\u003c\/strong\u003e\u003cbr\u003e\nA: Most manufacturers recommend inspecting the impeller annually and replacing it every 2–3 years or 200–300 hours of operation, whichever comes first. If you operate in sandy or debris-filled water, more frequent replacement may be necessary.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I replace just the impeller, or do I need the entire kit?\u003c\/strong\u003e\u003cbr\u003e\nA: While you can replace the impeller alone, it's best practice to replace all wear components (gaskets, seals, wear plate, and insert cup) at the same time. This kit provides everything needed to ensure a leak-free, long-lasting repair and prevents repeated disassembly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit fit both 40HP and 50HP engines from 1995 to 2019?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, this kit is designed to fit Yamaha 40HP (1995–2016) and 50HP (1995–2019) 2-stroke 3-cylinder engines. Always verify your engine's model and serial number against the compatibility table to confirm proper fitment before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between this aftermarket kit and the OEM version?\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":52418549219641,"sku":"25KY487-2","price":68.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/kit-25KY487-2_6b5c55fc-2116-4f1c-bea1-8c38e0376a3c.png?v=1776687042","url":"https:\/\/jlmmarine.com\/products\/632-w006a-00-water-pump-repair-kit-for-yamaha-40hp-50hp-2-stroke-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}