{"product_id":"water-pump-impeller-fits-yamaha-6hp-8hp-9-9hp-4-stroke-replaces-68t-44352-00-00-18-3040-8m6010335","title":"Water Pump Impeller – Fits Yamaha 6HP\/8HP\/9.9HP 4-Stroke (Replaces 68T-44352-00-00, 18-3040, 8M6010335)","description":"\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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis replacement \u003cstrong\u003eWater Pump Impeller – Fits Yamaha 6HP\/8HP\/9.9HP 4-Stroke Outboard Engines (Replaces 68T-44352-00-00)\u003c\/strong\u003e is engineered to restore cooling performance in your outboard. It is designed for a precise fit on select Yamaha 4-Stroke outboard engines, including F6, F8, F9.9, and T8 models manufactured between 2001 and 2014.\u003c\/p\u003e\n  \u003cp\u003eIt serves as a direct replacement for Yamaha part number 68T-44352-00-00 and interchanges with aftermarket parts including Sierra 18-3040 and Quicksilver 8M6010335.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eInstalls directly into the lower unit water pump assembly.\u003c\/li\u003e\n    \u003cli\u003eConstructed from durable, marine-grade neoprene\/rubber for longevity.\u003c\/li\u003e\n    \u003cli\u003eRequires the correct Woodruff key for proper, slip-free operation on the driveshaft.\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.\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          \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\u003e68T-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003eOEM Reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-3040\u003c\/td\u003e\n          \u003ctd\u003eAftermarket Interchange\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eQuicksilver\u003c\/td\u003e\n          \u003ctd\u003e8M6010335\u003c\/td\u003e\n          \u003ctd\u003eAftermarket Interchange\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\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eThis impeller is compatible with a range of Yamaha 4-Stroke outboards, including standard and high-thrust (T8) 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\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-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\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\u003e2009–2011\u003c\/td\u003e\n          \u003ctd\u003e68T-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eF8\u003c\/td\u003e\n          \u003ctd\u003e8\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2011\u003c\/td\u003e\n          \u003ctd\u003e68T-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eT8\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-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003eHigh thrust version\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eF9.9\u003c\/td\u003e\n          \u003ctd\u003e9.9\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2014\u003c\/td\u003e\n          \u003ctd\u003e68T-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003e\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\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement in lower unit water pump assembly\u003c\/dd\u003e\n    \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNeoprene\/Rubber\u003c\/dd\u003e\n    \u003cdt\u003eCompatibility\u003c\/dt\u003e\n\u003cdd\u003eYamaha 4-Stroke 6HP, 8HP, 9.9HP outboard engines\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eMust be installed with proper Woodruff key for proper operation\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 Impeller (68T-44352-00-00)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery and remove the propeller.\u003c\/li\u003e\n    \u003cli\u003eDrain the gearcase oil from the lower unit.\u003c\/li\u003e\n    \u003cli\u003eUnbolt and carefully separate the lower unit from the engine’s upper housing.\u003c\/li\u003e\n    \u003cli\u003eLocate and unbolt the water pump housing cover.\u003c\/li\u003e\n    \u003cli\u003eNote the rotational direction of the old impeller vanes before removing it from the driveshaft.\u003c\/li\u003e\n    \u003cli\u003eRemove the old impeller and Woodruff key. Clean and inspect the pump housing and wear plate for scoring or damage.\u003c\/li\u003e\n    \u003cli\u003eInstall the new Woodruff key onto the flat spot on the driveshaft.\u003c\/li\u003e\n    \u003cli\u003eSlide the new impeller onto the shaft while turning the driveshaft clockwise to correctly bend the vanes inside the housing.\u003c\/li\u003e\n    \u003cli\u003eReassemble the water pump housing, ensuring a proper seal.\u003c\/li\u003e\n    \u003cli\u003eReattach the lower unit to the engine, refill with fresh gear lube, and reinstall the propeller.\u003c\/li\u003e\n    \u003cli\u003eBefore boating, test the engine in a barrel of water or with a flush attachment to verify strong water flow from the tell-tale port.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm this impeller is correct for my Yamaha outboard?\u003c\/summary\u003e\u003cp\u003eVerify your engine's model, horsepower, and year fall within the ranges listed in the Engine \u0026amp; Model Compatibility table. Cross-reference the OEM part number (68T-44352-00-00) with your service manual or current part to ensure an exact match.\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 absent water stream from the \"tell-tale\" outlet, engine overheating alerts or alarms, and a reduction in overall engine performance. A visual inspection may show cracked, brittle, or worn-down impeller vanes.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the recommended replacement interval for an impeller?\u003c\/summary\u003e\u003cp\u003eFor preventative maintenance, it is best practice to replace the impeller every 1 to 2 years or every 100-200 hours of operation, whichever comes first. This schedule can vary based on usage conditions (e.g., saltwater vs. freshwater, sandy or silty water).\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhy is the Woodruff key so important for installation?\u003c\/summary\u003e\u003cp\u003eThe Woodruff key is a small, semi-circular piece of metal that locks the impeller to the driveshaft, preventing it from spinning freely. Without it, the driveshaft will rotate, but the impeller will not, resulting in a complete loss of water circulation and causing the engine to overheat almost immediately.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes this part include the full water pump repair kit?\u003c\/summary\u003e\u003cp\u003eNo, this listing is for the flexible neoprene impeller only. It does not include the water pump housing, gaskets, face plate, or Woodruff key. These components should be inspected during installation and replaced if they show signs of wear, corrosion, or damage.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eIs it safe to reuse my old water pump gaskets?\u003c\/summary\u003e\u003cp\u003eIt is strongly recommended to use new gaskets during a water pump service. Old gaskets can become brittle and compressed, leading to a poor seal that can cause water leaks into the gearcase or air leaks that reduce pump efficiency.\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\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\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":50723981885755,"sku":"17IY014","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17IY0141_7e2e9722-0f5e-47de-83a1-7833b908f66e.jpg?v=1763039285","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-fits-yamaha-6hp-8hp-9-9hp-4-stroke-replaces-68t-44352-00-00-18-3040-8m6010335","provider":"SeaSierra","version":"1.0","type":"link"}