{"product_id":"fuel-pump-assembly-fits-yamaha-9-9-15-hp-mercury-8-15-hp-4-stroke-replaces-66m-24410-11-00","title":"Fuel Pump Assembly – Fits Yamaha 9.9–15 HP \u0026 Mercury 8–15 HP 4-Stroke (Replaces 66M-24410-11-00)","description":"\u003csection\u003e\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 \u003cstrong\u003eFuel Pump Assembly – Fits Yamaha 9.9–15 HP \u0026amp; Mercury 8–15 HP 4-Stroke (Replaces 66M-24410-11-00)\u003c\/strong\u003e is an OEM-quality replacement for select Yamaha 9.9 HP to 15 HP 4-stroke outboard motors (1998–2006) and comparable Mercury\/Mariner 8 HP to 15 HP 4-stroke models.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct interchange for Yamaha part numbers 66M-24410-00-00, 66M-24410-01-00, 66M-24410-10-00, and 66M-24410-11-00, as well as Mercury 835389T1, 835389T02, and 835389A2.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls as a direct OEM-style replacement.\u003c\/li\u003e\n\u003cli\u003eEngineered for 2-cylinder, 4-stroke outboard engines.\u003c\/li\u003e\n\u003cli\u003eIncludes fuel pump, hose clamp, and O-ring for a complete installation.\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\u003e66M-24410-11-00\u003c\/td\u003e\n        \u003ctd\u003eCurrent Part\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-01-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded Part\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-00-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded Part\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e835389T1\u003c\/td\u003e\n        \u003ctd\u003eCross-Reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e835389T02\u003c\/td\u003e\n        \u003ctd\u003eCross-Reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e835389A2\u003c\/td\u003e\n        \u003ctd\u003eCross-Reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-35302\u003c\/td\u003e\n        \u003ctd\u003eAftermarket Interchange\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-35302\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\u003e\u003cb\u003eYamaha Models:\u003c\/b\u003e This fuel pump fits a range of F9.9, T9.9, and F15 outboards from approximately 1998 through 2006. Verify your specific model code and year.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Yamaha 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\u003e1998–2006\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eT9.9\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2005–2006\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-11-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998–2006\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-11-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF9.9ELR2\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2005\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-11-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF9.9MLH2\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2005\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-11-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF9.9MSH2\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2005\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-11-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15ELHA\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2002\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15ESHA\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2002\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15MLHA\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2002\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15MSHA\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2002\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15PLHA\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2002\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15PLRA\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2002\u003c\/td\u003e\n        \u003ctd\u003e66M-24410-10-00\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 66M-24410-11-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eMercury \u0026amp; Mariner Models:\u003c\/b\u003e This part is a compatible service replacement for select 8, 9.9, 13.5, and 15 HP 4-stroke outboards. Since model years vary, confirming your original part number is the most reliable method to ensure fitment.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eFuel Pump Assembly\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM-style replacement\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eTwo hose barb fittings\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003ePlastic with metal top\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack with silver components\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.21 kg (0.47 lb)\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eHose barb\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eDesigned for 2-cylinder, 4-stroke outboard engines\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003eVaries by manufacturer; typically 1 year\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 Fuel Pump Assembly (Replaces 66M-24410-11-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Hose Clamp (Replaces 90467-09M09-00)\u003c\/li\u003e\n  \u003cli\u003e1 x O-Ring (Replaces 93210-20M65-00, 2.65*20mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the negative battery terminal to prevent electrical hazards.\u003c\/li\u003e\n  \u003cli\u003eRelieve fuel system pressure. Consult your engine's service manual for the specific procedure.\u003c\/li\u003e\n  \u003cli\u003ePlace a rag under the fuel pump to catch any fuel spillage.\u003c\/li\u003e\n  \u003cli\u003eClamp the fuel inlet and outlet lines before disconnecting them from the pump.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolts securing the old fuel pump assembly.\u003c\/li\u003e\n  \u003cli\u003eCarefully remove the old pump and any gasket or O-ring material from the mounting surface.\u003c\/li\u003e\n  \u003cli\u003eInstall the new O-ring (included) and position the new fuel pump assembly.\u003c\/li\u003e\n  \u003cli\u003eSecure the new pump with the original mounting bolts, tightening to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReconnect the fuel lines and secure them with the new hose clamp (included).\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery terminal, prime the fuel system, and carefully check for any leaks before starting the engine.\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 fuel pump is failing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs of a failing fuel pump include engine hesitation or bogging down, sputtering at high speeds, difficulty starting, stalling, or a general loss of power.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a direct fit for my engine?\u003c\/summary\u003e\n  \u003cp\u003eThis pump is designed as a direct OEM-style replacement for the specific Yamaha and Mercury\/Mariner models listed. To guarantee fitment, the best practice is to match your engine's original part number to one of the equivalents in our Part Number Matrix.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan this pump be used with ethanol-blended fuel (E10)?\u003c\/summary\u003e\n  \u003cp\u003eYes, it is designed for use with modern gasoline, including E10 blends. However, for maximum longevity, avoid using fuels with higher ethanol concentrations unless specified as compatible by your engine manufacturer.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between all the Yamaha part numbers listed?\u003c\/summary\u003e\n  \u003cp\u003eThe part number 66M-24410-11-00 is the latest version from Yamaha. The other numbers (like 66M-24410-00-00 and 66M-24410-10-00) are older, superseded versions that this pump also replaces.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eMy engine is a 2-stroke, can I use this pump?\u003c\/summary\u003e\n  \u003cp\u003eNo. This fuel pump is engineered exclusively for the 2-cylinder, 4-stroke outboard engines specified in the compatibility list.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhy are the Mercury\/Mariner model years not listed?\u003c\/summary\u003e\n  \u003cp\u003eMercury and Mariner often used Yamaha-built powerheads in certain horsepower ranges, but the exact model year correspondence can be inconsistent. Therefore, for Mercury\/Mariner engines, it is critical to verify fitment using the OEM part number (835389T1, 835389T02, or 835389A2) rather than relying on year alone.\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). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for 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 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\/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":50718267932987,"sku":"QU-CXJW-FIBI","price":38.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/QU-CXJW-FIBI.png?v=1762958611","url":"https:\/\/seasierra.com\/products\/fuel-pump-assembly-fits-yamaha-9-9-15-hp-mercury-8-15-hp-4-stroke-replaces-66m-24410-11-00","provider":"SeaSierra","version":"1.0","type":"link"}