{"product_id":"water-pump-impeller-kit-fits-yamaha-9-9-13-5-15-20hp-4-stroke-outboards-replaces-6ah-w0078-00","title":"Water Pump Impeller Kit – Fits Yamaha 9.9\/13.5\/15\/20HP 4-Stroke Outboards (Replaces 6AH-W0078-00)","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 aftermarket \u003cstrong\u003eWater Pump Impeller Kit\u003c\/strong\u003e is engineered to fit Yamaha 4-Stroke outboard models including the F9.9, F13.5, F15C, and F20 series from approximately 2006 to 2023. It provides all the necessary components for a complete water pump overhaul to restore your engine's cooling performance.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct interchange for Yamaha OEM part numbers 6AH-W0078-00-00, 6AH-W0078-01-00, and 6AH-W0078-02-00.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for direct OEM-replacement installation.\u003c\/li\u003e\n  \u003cli\u003eFeatures a durable cast iron water pump housing.\u003c\/li\u003e\n  \u003cli\u003eComplete kit includes impeller, housing, plates, gaskets, and hardware.\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\u003eSuperseded By\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\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-01-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-01-00\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-02-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-02-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003eCurrent Version\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\u003eFits a range of Yamaha 4-stroke outboard motors from 9.9HP to 20HP.\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\u003eF9.9\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2009–2016\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e6CA1-6AC9\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF13.5\u003c\/td\u003e\n        \u003ctd\u003e13.5\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2007–2009\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e6AF1-6AF3\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\u003e2007–2014\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e6AG1-6AG9\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\u003e2015–2016\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e6AGA-6AGB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15C\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2008–2017\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF15CEHL, F15CEHS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15C\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2007–2017\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF15CMHL, F15CMHS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15L\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2007–2022\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF15LEHA, F15LMHA\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\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2007–2014\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e6AH1-6AH9\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\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2015–2016\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e6AHA-6AHB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF20B\u003c\/td\u003e\n        \u003ctd\u003e20\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2007–2017\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF20BEHPL, F20BEPL, F20BMHL, F20BMHS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF20L\u003c\/td\u003e\n        \u003ctd\u003e20\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2007–2022\u003c\/td\u003e\n        \u003ctd\u003e6AH-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eF20LMHA, F20LPA, F20LPHA\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\u003eCast Iron\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 (6AH-44311-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Insert (63V-44322-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Seal Damper (6L2-44367-00-00\/6L2-44367-01-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Impeller (63V-44352-01-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Woodruff Key (664-44338-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x O-Ring (93210-49046-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Outer Plate (68T-44323-00-00)\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e2 x Dowel Pins (93604-10M03-00)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Bolts (97095-08045-00)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e2 x Plates (63V-44328-01-00)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the negative battery cable before starting work.\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 to access the impeller and other components.\u003c\/li\u003e\n  \u003cli\u003eClean all mating surfaces thoroughly, removing any old gasket material or sealant.\u003c\/li\u003e\n  \u003cli\u003eInstall the new woodruff key, impeller, plates, and gaskets as provided in the kit. Ensure the impeller blades are oriented in the direction of driveshaft rotation.\u003c\/li\u003e\n  \u003cli\u003eSeat the new housing and tighten the bolts to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, refill with fresh gearcase lubricant, and reconnect the battery.\u003c\/li\u003e\n  \u003cli\u003eStart the engine in a suitable water source and verify a strong, steady stream from the cooling system's 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 my water pump needs replacing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include a weak or intermittent water stream from the tell-tale outlet, engine overheating alarms, or a visibly cracked, brittle, or deformed impeller discovered during a routine inspection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the recommended replacement interval for this kit?\u003c\/summary\u003e\n  \u003cp\u003eFor preventative maintenance and to ensure engine reliability, we recommend inspecting the impeller annually and replacing the entire water pump kit every 2-3 years or 200-300 hours of operation, whichever comes first.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit my specific engine serial number?\u003c\/summary\u003e\n  \u003cp\u003eThis kit fits the models and years listed in the compatibility table. For certain models, the 'Notes' column provides additional serial number range details. Always cross-reference your engine's model and year against the table to ensure fitment.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of an incorrectly installed impeller?\u003c\/summary\u003e\n  \u003cp\u003eImmediate overheating, no water stream from the tell-tale, or an unusually weak stream are primary indicators. This can happen if the impeller blades are folded in the wrong direction or if the woodruff key was not installed correctly, preventing the impeller from spinning with the driveshaft.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket: What's the difference?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. All our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the shipping speed \u0026amp; costs?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout if available for 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 use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its 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\/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 quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723987358011,"sku":"SIE-17KY006","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_F99_-_F135_-_F15_-_F15_-_F20_-_F20_6AH-W0078-00_-_JLM_MARINE-8289230.jpg?v=1763039516","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-kit-fits-yamaha-9-9-13-5-15-20hp-4-stroke-outboards-replaces-6ah-w0078-00","provider":"SeaSierra","version":"1.0","type":"link"}