{"product_id":"water-pump-impeller-repair-kit-fits-yamaha-6-15-hp-replaces-68t-w0078-00-00-68t-w0078-01-00","title":"Water Pump Impeller Repair Kit – Fits Yamaha 6-15 HP (Replaces 68T-W0078-00-00, 68T-W0078-01-00)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis comprehensive \u003cstrong\u003eWater Pump Impeller Repair Kit\u003c\/strong\u003e is engineered for Yamaha 4-Stroke outboards including 6 HP, 8 HP, 9.9 HP, and 15 HP models (F6, F8, T8, F9.9, FT9.9, T9.9, F15) manufactured between 2000 and 2015. It provides all necessary components to restore your engine's cooling system to factory specifications, ensuring reliability and preventing overheating.\u003c\/p\u003e\n\u003cp\u003eThe kit serves as a direct interchange for Yamaha part numbers 68T-W0078-00-00, 68T-W0078-01-00, and 68T-W0078-02-00, as well as aftermarket equivalents from Sierra (18-3410, 18-3450) and GLM (12138, 12046).\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for direct OEM-level fitment and performance.\u003c\/li\u003e\n  \u003cli\u003eEngineered with a high-flow impeller for improved cooling capacity.\u003c\/li\u003e\n  \u003cli\u003eIncludes a complete set of seals, gaskets, and hardware for a full service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket suppliers.\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\u003e68T-W0078-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e68T-W0078-01-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e68T-W0078-02-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3410\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3450\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e12138\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e12046\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model and year in the table below to ensure accurate fitment.\u003c\/p\u003e\n\u003cp\u003eThis kit is designed for select Yamaha 4-stroke outboard models. It is critical to verify your engine's specific model code, horsepower, and year, as fitment can vary even within the same series.\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\u003eF6\u003c\/td\u003e\n        \u003ctd\u003e6\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2001–2008\u003c\/td\u003e\n        \u003ctd\u003e68T-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF6MLH, F6MLHZ, F6AMLH, F6MSH, F6MSHZ, F6AMSH, F6MSHA, F6MLHC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF8\/T8\u003c\/td\u003e\n        \u003ctd\u003e8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2001–2010\u003c\/td\u003e\n        \u003ctd\u003e68T-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF8MSHB, F8LMHB, F8LMHA, F8MLHZ, F8SMHB, F8CMSH\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF9.9\/T9.9\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2007–2015\u003c\/td\u003e\n        \u003ctd\u003e68T-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF9.9LEA, F9.9LMHB, F9.9FMSH, F9.9SMHB, F9.9LEHB, F9.9FELR, F9.9FMLH\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2001–2009\u003c\/td\u003e\n        \u003ctd\u003e68T-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eLower unit gearcase models\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\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\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eNylon Water Pump Housing, CR-Neoprene Water Pump Impeller and Seals, Stainless Steel 316 Wear Plate \u0026amp; Liner\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.27 kg (0.6 lb)\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e30-day refund\/replacement\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eDesigned for higher flow rates and improved cooling flow\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Water Pump Housing (63V-44301-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Impeller (68T-44352-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Insert (68T-44322-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Outer Plate (68T-44323-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Seal Damper (68T-44366-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Woodruff Key (63V-44338-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x O-Ring (93210-44398-00)\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Bolts (97095-08045-00)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and spark plug leads for safety.\u003c\/li\u003e\n  \u003cli\u003ePlace a drain pan under the lower unit and remove the gearcase oil drain screw to empty the oil.\u003c\/li\u003e\n  \u003cli\u003eRemove the bolts securing the lower unit (gearcase) to the engine's upper casing and carefully lower it.\u003c\/li\u003e\n  \u003cli\u003eUnbolt and remove the old water pump housing assembly from the driveshaft.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surfaces and inspect the driveshaft for any wear or damage.\u003c\/li\u003e\n  \u003cli\u003eInstall the new woodruff key, impeller, liner, and seals as per the kit diagram. Ensure the impeller vanes are oriented correctly.\u003c\/li\u003e\n  \u003cli\u003eSeat the new housing and tighten the bolts to the manufacturer's recommended torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, refill with fresh gearcase oil, and reconnect the battery.\u003c\/li\u003e\n  \u003cli\u003eStart the engine in water and verify a strong, consistent stream from the tell-tale outlet.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this kit fits my specific Yamaha outboard?\u003c\/summary\u003e\n  \u003cp\u003eThis kit is designed for a range of models, but subtle variations exist. It is essential to verify your engine's exact model, horsepower, serial number range, and year against the compatibility chart. Some reviews note fitment issues on newer models, so cross-referencing your part numbers is the most reliable method.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing water pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include a weak or non-existent water stream from the \"tell-tale\" outlet, engine overheating alarms, or a reduction in engine performance. Upon inspection, a worn impeller may have cracked, brittle, or missing vanes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace the water pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eAs a preventative maintenance item, it is recommended to replace the impeller every 1 to 2 years or every 100-200 hours of operation, whichever comes first. Service intervals should be shorter if operating frequently in sandy, silty, or saltwater environments.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this kit include the water pump housing?\u003c\/summary\u003e\n  \u003cp\u003eYes, this is a complete repair kit that includes the water pump housing (part no. 63V-44301-00-00), impeller, wear plate, seals, and all necessary hardware for a full replacement.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, with batch inspections for quality and consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images and specifications against your original part before purchase. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement component, not an original equipment manufacturer (OEM) part.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is highly recommended for safety, performance, and to prevent damage to your engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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 rigorously 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, typically arriving in 5–15 days. Express options are available.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — By working directly with manufacturers, we offer fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723776037179,"sku":"XR-68TW0078","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/XR-68TW0078.png?v=1763031527","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-repair-kit-fits-yamaha-6-15-hp-replaces-68t-w0078-00-00-68t-w0078-01-00","provider":"SeaSierra","version":"1.0","type":"link"}