{"product_id":"water-pump-impeller-kit-fits-yamaha-9-9hp-15hp-2-stroke-replaces-yamaha-682-44352-00-sierra-18-3074","title":"Water Pump Impeller Kit – Fits Yamaha 9.9HP 15HP 2-Stroke (Replaces Yamaha 682-44352-00, Sierra 18-3074)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller Kit – Fits Yamaha 9.9HP 15HP 2-Stroke (Replaces 682-44352-00, Sierra 18-3074)\u003c\/strong\u003e is designed for Yamaha 2-stroke 9.9HP and 15HP outboard motors, including specific compatibility with E9.9D and E15D models. It serves as a complete solution for servicing your engine's cooling system.\u003c\/p\u003e\n\u003cp\u003eIt provides a direct interchange for Yamaha parts 682-44352-00-00 through 682-44352-40-00, Sierra 18-3074, Mallory 9-45605, Mercury 47-84027M\/T \u0026amp; 47-96619M, and GLM 89880.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Method:\u003c\/strong\u003e Direct replacement for a straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Materials:\u003c\/strong\u003e Features a neoprene rubber impeller and stainless steel hardware for longevity in marine environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Tip:\u003c\/strong\u003e For a smooth installation, lubricate the impeller with silicone grease, glycerin, or dish soap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\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\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\u003e682-44352-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e682-44352-01-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e682-44352-02-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e682-44352-03-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e682-44352-40-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3074\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-45605\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-84027M\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-84027T\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-96619M\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e89880\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 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\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\u003eE9.9D\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e682-44352-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eE15D\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e682-44352-00-00\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 replacement\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNeoprene Rubber (Impeller), Stainless Steel (Hardware)\u003c\/dd\u003e\n  \u003cdt\u003eCompatible Engine Type\u003c\/dt\u003e\n\u003cdd\u003e2-Stroke Outboard\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.05 kg (0.11 lb)\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 Impeller (682-44352-00)\u003c\/li\u003e\n\u003cli\u003e1 x Damper Water Seal (682-44365-00)\u003c\/li\u003e\n\u003cli\u003e2 x Gasket (682-44315-00)\u003c\/li\u003e\n\u003cli\u003e1 x Outer Plate (682-44323-00)\u003c\/li\u003e\n\u003cli\u003e1 x Key (90280-03024)\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\u003eInstallation is a direct replacement process. Ensure the engine is turned off and disconnected from the power source before starting.\u003c\/li\u003e\n\u003cli\u003eDuring assembly, lubricate the new impeller with silicone grease, glycerin, or dish soap to prevent damage and ensure a proper seal.\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\n\u003csummary\u003eHow do I confirm this kit fits my Yamaha engine?\u003c\/summary\u003e\n\u003cp\u003eThis kit is designed for Yamaha 9.9HP and 15HP 2-Stroke outboards, specifically models E9.9D and E15D. The most reliable way to confirm fitment is by matching your existing part number to one of the cross-reference numbers listed in the Part Number Matrix, such as Yamaha 682-44352-00 or Sierra 18-3074.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are the signs of a worn or failing water pump impeller?\u003c\/summary\u003e\n\u003cp\u003eCommon symptoms include the engine overheating at idle or low speeds, a weak or non-existent water stream from the \"telltale\" outlet, and visible cracks, brittleness, or worn-down blades on the old impeller upon inspection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow often should I replace my outboard's impeller?\u003c\/summary\u003e\n\u003cp\u003eAs a general maintenance guideline, it's recommended to inspect your water pump impeller annually and replace it every 1-2 years or every 100-200 hours of use, whichever comes first. Usage in saltwater or sandy\/silty conditions may require more frequent replacement.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this a complete kit for a water pump service?\u003c\/summary\u003e\n\u003cp\u003eYes, this kit includes all the essential components for a standard water pump rebuild: the impeller, gaskets, outer plate, damper seal, and key. Please check the \"What's in the Box\" section to see all included parts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need special tools for this installation?\u003c\/summary\u003e\n\u003cp\u003eStandard mechanical tools are typically sufficient. You will need to remove the lower unit of the outboard to access the water pump housing. No proprietary tools are generally required for this type of service.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the difference between OEM and aftermarket parts?\u003c\/summary\u003e\n\u003cp\u003eThis listing is an aftermarket replacement (not OEM). It's built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility. Each batch is inspected for consistency and quality.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow fast is shipping?\u003c\/summary\u003e\n\u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free, and expedited options may be available at checkout depending on your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n\u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal operating use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition.\u003c\/p\u003e\n\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 and specifications against 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":50723777020219,"sku":"MF-NIK1-1O0Y","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/MF-NIK1-1O0Y.png?v=1763031548","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-kit-fits-yamaha-9-9hp-15hp-2-stroke-replaces-yamaha-682-44352-00-sierra-18-3074","provider":"SeaSierra","version":"1.0","type":"link"}