{"product_id":"6l2-44352-00-water-pump-impeller-for-yamaha-f20-f25-17iy008","title":"6L2-44352-00 Water Pump Impeller for Yamaha F20 F25 | JLM Marine","description":"\u003ch2\u003eWater Pump Impeller Replacement for Yamaha 2-Stroke \u0026amp; 4-Stroke Outboards 20\/25 HP – OEM 6L2-44352-00\u003c\/h2\u003e\n\n\u003cp\u003eThis high-quality aftermarket water pump impeller is engineered as a direct replacement for Yamaha outboard engines rated at \u003cstrong\u003e20 HP\u003c\/strong\u003e and \u003cstrong\u003e25 HP\u003c\/strong\u003e. It fits select 2-stroke 20 HP models (1996–1997) and 4-stroke F20 (2018–2021) and F25 (2016–2021) engines, ensuring reliable cooling system performance across multiple model years.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to replace Yamaha OEM part number \u003cstrong\u003e6L2-44352-00\u003c\/strong\u003e (also known as 6L2-44352), this impeller also cross-references with Sierra 18-3065 and CEF 500384. It is manufactured from premium-grade hardened nylon and scientifically engineered neoprene rubber for maximum durability and corrosion resistance in demanding marine environments.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect fit for Yamaha 20 HP and 25 HP outboards (2-stroke and 4-stroke applications)\u003c\/li\u003e\n  \u003cli\u003eConstructed with marine-grade neoprene rubber and hardened nylon for long-lasting performance\u003c\/li\u003e\n  \u003cli\u003eSimple drop-in installation for routine water pump maintenance\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\u003eYamaha OEM\u003c\/td\u003e\n      \u003ctd\u003e6L2-44352\u003cbr\u003e6L2-44352-00\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSierra\u003c\/td\u003e\n      \u003ctd\u003e18-3065\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCEF\u003c\/td\u003e\n      \u003ctd\u003e500384\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\"\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\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e20 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1996–1997\u003c\/td\u003e\n        \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF20\u003c\/td\u003e\n        \u003ctd\u003e20 HP\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2018–2021\u003c\/td\u003e\n        \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF25\u003c\/td\u003e\n        \u003ctd\u003e25 HP\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2016–2021\u003c\/td\u003e\n        \u003ctd\u003e6L2-44352-00\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\"\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\u003eMaterials\u003c\/td\u003e\n      \u003ctd\u003eHardened nylon hub with high-performance neoprene rubber blades (marine \u0026amp; chemical corrosion resistant)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Blades\u003c\/td\u003e\n      \u003ctd\u003e6\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eExternal Impeller Overall Diameter\u003c\/td\u003e\n      \u003ctd\u003e52.00 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInternal Shaft Insert Diameter\u003c\/td\u003e\n      \u003ctd\u003e14.10 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eItem Weight\u003c\/td\u003e\n      \u003ctd\u003e20 g\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\n\u003cspan style=\"color:red;\"\u003e1 × Neoprene Water Pump Impeller\u003c\/span\u003e (replacement for Yamaha 6L2-44352-00)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003eDisconnect the fuel line and remove the engine cover to access the lower unit.\u003c\/li\u003e\n  \u003cli\u003eDrain the lower unit gear oil completely and remove the propeller.\u003c\/li\u003e\n  \u003cli\u003eUnbolt and separate the lower unit from the mid-section housing.\u003c\/li\u003e\n  \u003cli\u003eLocate the water pump housing and remove the retaining bolts or screws.\u003c\/li\u003e\n  \u003cli\u003eCarefully extract the old impeller from the pump housing; note the direction of the vanes.\u003c\/li\u003e\n  \u003cli\u003eClean all mating surfaces, gasket grooves, and the pump chamber thoroughly.\u003c\/li\u003e\n  \u003cli\u003eLubricate the new impeller with glycerin or soapy water (never petroleum-based grease).\u003c\/li\u003e\n  \u003cli\u003eInstall the new impeller into the housing, ensuring vanes are oriented in the correct rotation direction.\u003c\/li\u003e\n  \u003cli\u003eFit a new gasket and plate, then reassemble the water pump housing onto the lower unit.\u003c\/li\u003e\n  \u003cli\u003eReattach the lower unit to the mid-section, torque all fasteners to specification.\u003c\/li\u003e\n  \u003cli\u003eRefill the lower unit with the correct grade and quantity of gear oil, then reinstall the propeller.\u003c\/li\u003e\n  \u003cli\u003eRun the engine on a flushing system to verify proper water flow and cooling before launching.\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 impeller fits my Yamaha engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Cross-check your engine's model, horsepower, stroke type, and year against the compatibility table above. Verify your original impeller's part number matches 6L2-44352-00 or the cross-references (Sierra 18-3065, CEF 500384).\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 annual replacement or every 200–300 operating hours, whichever comes first. Replace immediately if you notice overheating, reduced water flow from the telltale, or visible cracks and wear on the vanes.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my impeller is failing?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include engine overheating, weak or absent cooling water stream from the indicator outlet, steam from the engine, and the high-temperature warning alarm activating. Inspect the impeller if any of these occur.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use petroleum-based grease when installing this impeller?\u003c\/strong\u003e\u003cbr\u003e\nA: No. Always lubricate neoprene impellers with water-based lubricants such as glycerin, dish soap solution, or dedicated impeller grease. Petroleum products can cause the rubber to swell and fail prematurely.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM part or an aftermarket replacement?\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":50471590396217,"sku":"17IY008","price":16.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/17IY0081_ca575eae-f526-47df-8153-ef4e5da27301.jpg?v=1755252410","url":"https:\/\/jlmmarine.com\/products\/6l2-44352-00-water-pump-impeller-for-yamaha-f20-f25-17iy008","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}