{"product_id":"water-pump-repair-kit-fits-yamaha-4-6-hp-replaces-6ee-w0078-01-6bx-wg078-00","title":"Water Pump Repair Kit – Fits Yamaha 4-6 HP (Replaces 6EE-W0078-01, 6BX-WG078-00)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eWater Pump Repair Kit – Fits Yamaha 4-6 HP Outboards (Replaces 6EE-W0078-01, 6BX-WG078-00)\u003c\/strong\u003e provides all necessary components to restore your engine's cooling system. It is designed for Yamaha 4-stroke F4, F5, and F6 models from years 2009–2020, ensuring a precise fit and reliable performance.\u003c\/p\u003e\n  \u003cp\u003eThe kit serves as a direct interchange for Yamaha part numbers 6BX-WG078-00, 6EE-W0078-00, and 6EE-W0078-01, as well as Sierra 18-3473.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eEngineered for direct OEM replacement and fit.\u003c\/li\u003e\n    \u003cli\u003eIncludes all essential gaskets, seals, and hardware for a complete service.\u003c\/li\u003e\n    \u003cli\u003eRestores cooling system performance for engine safety and longevity.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\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\u003e6BX-WG078-00\u003c\/td\u003e\n         \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e6EE-W0078-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-3473\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eThis kit is verified for compatibility with the following Yamaha outboard models.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\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          \u003cth\u003eNotes\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\u003eF4LMHA\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2009–2020\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4SMHA\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2009–2020\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4BMH\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010+\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003eInternational model\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF5AMH\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010+\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003eInternational model\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF5LMH\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010+\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF5SMH\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010+\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF6LMHA\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2009–2020\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF6SMHA\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2009–2020\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF6CMH\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010+\u003c\/td\u003e\n\u003ctd\u003e6EE-W0078-01\u003c\/td\u003e\n\u003ctd\u003eInternational model\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller Repair Kit\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.47 kg (1.04 lb)\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eFor water cooling system maintenance\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Water Pump Impeller (6E0-44352-00-00)\u003c\/li\u003e\n    \u003cli\u003e1 x Water Pump Housing (6EE-G4311-00-00)\u003c\/li\u003e\n    \u003cli\u003e1 x Insert Cartridge (6BX-44322-00-00)\u003c\/li\u003e\n    \u003cli\u003e1 x Outer Plate Cartridge (6BX-44323-00-00)\u003c\/li\u003e\n    \u003cli\u003e1 x Water Pump Gasket (6EE-G4315-00-00)\u003c\/li\u003e\n    \u003cli\u003e1 x Water Seal Damper (67D-44366-00-00)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Pin Dowel (93064-18080-00)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e4 x\u003c\/span\u003e Bolt (97080-06045-00)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery and ensure the engine is off and cool.\u003c\/li\u003e\n    \u003cli\u003eRemove the lower unit (gearcase) from the outboard motor.\u003c\/li\u003e\n    \u003cli\u003eUnbolt and remove the old water pump housing. Note the orientation of existing parts.\u003c\/li\u003e\n    \u003cli\u003eRemove the old impeller, gaskets, and seals from the driveshaft and housing.\u003c\/li\u003e\n    \u003cli\u003eClean all mounting surfaces thoroughly to remove old gasket material and corrosion.\u003c\/li\u003e\n    \u003cli\u003eInstall the new water seal, gasket, and dowel pins.\u003c\/li\u003e\n    \u003cli\u003eSlide the new impeller onto the driveshaft, rotating clockwise to set the vanes correctly.\u003c\/li\u003e\n    \u003cli\u003eInstall the new cartridge, plate, and housing, ensuring all components are properly aligned.\u003c\/li\u003e\n    \u003cli\u003eTorque the housing bolts to the manufacturer's specified value.\u003c\/li\u003e\n    \u003cli\u003eReinstall the lower unit, ensuring the water tube and shift shaft align correctly.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery and test the engine in water, verifying a steady stream from the tell-tale outlet.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I know if this kit fits my Yamaha outboard?\u003c\/summary\u003e\u003cp\u003eThis kit is specifically designed for Yamaha 4-stroke F4, F5, and F6 models made between 2009 and 2020. Please verify your exact model number and year against the compatibility chart provided. Cross-referencing your old part number with the ones listed in our Part Number Matrix is also a reliable way to confirm fitment.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include a weak or intermittent water stream from the \"tell-tale\" outlet, engine overheating alarms, and in severe cases, steam from the exhaust. Visible damage to the impeller vanes (cracks, missing pieces, or loss of flexibility) also indicates it's time for a replacement.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow often should the water pump be serviced?\u003c\/summary\u003e\u003cp\u003eAs a general guideline, it is recommended to inspect and\/or replace the water pump impeller every 100 operating hours or at least once per year, whichever comes first. This interval can be shorter if you operate frequently in sandy, silty, or saltwater environments.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes this kit include the pump housing?\u003c\/summary\u003e\u003cp\u003eYes, this is a complete repair kit that includes the water pump housing, impeller, gaskets, plates, and all necessary bolts and dowel pins for a full replacement. Please see the \"What's in the Box\" section for a detailed list of all included components.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eIs there a \"break-in\" period for a new impeller?\u003c\/summary\u003e\u003cp\u003eThere is no formal break-in period. However, after installation, it is crucial to start the engine in water and confirm a strong, steady stream from the tell-tale outlet immediately. Let the engine idle for a few minutes to ensure everything is functioning correctly before operating at high speeds.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I replace just the impeller instead of the whole kit?\u003c\/summary\u003e\u003cp\u003eWhile possible, it is not recommended. The housing, wear plates, and gaskets wear down over time and can reduce the new impeller's efficiency and lifespan. Using a complete kit ensures all critical components are new and matched for optimal performance and reliability.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723977036091,"sku":"21KY001","price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha__6EE-W0078-01_-_JLM_MARINE-8288925.jpg?v=1763039057","url":"https:\/\/seasierra.com\/products\/water-pump-repair-kit-fits-yamaha-4-6-hp-replaces-6ee-w0078-01-6bx-wg078-00","provider":"SeaSierra","version":"1.0","type":"link"}