{"product_id":"water-pump-impeller-fits-yamaha-6-8-hp-replaces-6g1-44352-00-00-18-3066","title":"Water Pump Impeller – Fits Yamaha 6-8 HP (Replaces 6G1-44352-00-00, 18-3066)","description":"\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\u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis aftermarket \u003cstrong\u003eWater Pump Impeller – Fits Yamaha 6-8 HP Outboards (Replaces 6G1-44352-00-00)\u003c\/strong\u003e is designed for a broad range of Yamaha 2-stroke engines from 1984–2019, covering 6 and 8 HP models. It is also compatible with select early 5 HP units and certain 8 HP high-thrust applications, ensuring reliable cooling system performance.\u003c\/p\u003e\n    \u003cp\u003eIt serves as a direct replacement for Yamaha part numbers 6G1-44352-00-00, 6G1-44352-01-00, and 6G1-44352-02-00, and interchanges with aftermarket parts including Sierra 18-3066, GLM 89870, CEF 500302, and Mallory 9-45610.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Engineered for direct replacement fit.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Constructed from durable neoprene rubber for marine environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Features a metal-reinforced, notched insert hub for secure seating.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\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                    \u003cth\u003eSuperseded By\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\u003e6G1-44352-00-00\u003c\/td\u003e\n                    \u003ctd\u003e6G1-44352-01-00, 6G1-44352-02-00\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eSierra\u003c\/td\u003e\n                    \u003ctd\u003e18-3066\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eGLM\u003c\/td\u003e\n                    \u003ctd\u003e89870\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eCEF\u003c\/td\u003e\n                    \u003ctd\u003e500302\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMallory\u003c\/td\u003e\n                    \u003ctd\u003e9-45610\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\u003c\/section\u003e\n\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\u003eFor Yamaha owners, please note that while this impeller is common for many 6-8 HP 2-stroke models, certain high-thrust (FT) 4-stroke engines use a different part number. Verify your specific OEM part number before ordering.\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\u003eVarious\u003c\/td\u003e\n                    \u003ctd\u003e6\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1986–2000\u003c\/td\u003e\n                    \u003ctd\u003e6G1-44352-00-00\u003c\/td\u003e\n                    \u003ctd\u003e2 cylinder models\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eYamaha\u003c\/td\u003e\n                    \u003ctd\u003eVarious\u003c\/td\u003e\n                    \u003ctd\u003e8\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1984–2019\u003c\/td\u003e\n                    \u003ctd\u003e6G1-44352-00-00\u003c\/td\u003e\n                    \u003ctd\u003e2 cylinder models\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eYamaha\u003c\/td\u003e\n                    \u003ctd\u003eFT8\u003c\/td\u003e\n                    \u003ctd\u003e8\u003c\/td\u003e\n                    \u003ctd\u003e4-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e2002–2014\u003c\/td\u003e\n                    \u003ctd\u003e63V-44352-01-00\u003c\/td\u003e\n                    \u003ctd\u003eHigh-thrust models have larger shaft\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\u003c\/section\u003e\n\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\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\u003c\/dd\u003e\n        \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n        \u003cdt\u003eHub Style\u003c\/dt\u003e\n\u003cdd\u003eNotched insert, metal reinforced\u003c\/dd\u003e\n        \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eMarine Cooling System\u003c\/dd\u003e\n    \u003c\/dl\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n    \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Impeller (replaces 6G1-44352-00-00)\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n    \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n    \u003col\u003e\n        \u003cli\u003eDisconnect the battery and shift the outboard to neutral.\u003c\/li\u003e\n        \u003cli\u003eLocate and unbolt the lower unit (gearcase) from the engine leg.\u003c\/li\u003e\n        \u003cli\u003eCarefully lower the gearcase to access the water pump housing on top of it.\u003c\/li\u003e\n        \u003cli\u003eRemove the bolts securing the water pump housing cover.\u003c\/li\u003e\n        \u003cli\u003eTake note of the rotational direction of the old impeller's blades before pulling it off the driveshaft.\u003c\/li\u003e\n        \u003cli\u003eClean the housing interior and inspect the wear plate and housing for grooves or corrosion.\u003c\/li\u003e\n        \u003cli\u003eSlide the new impeller onto the drive shaft while turning the shaft clockwise to correctly orient the blades.\u003c\/li\u003e\n        \u003cli\u003eReassemble the housing, ensuring any seals or gaskets are correctly placed.\u003c\/li\u003e\n        \u003cli\u003eReinstall the lower unit, carefully aligning the driveshaft, shift shaft, and water tube. Secure all bolts to the specified torque.\u003c\/li\u003e\n        \u003cli\u003eStart the engine in water and verify a steady stream from the cooling system's tell-tale port.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n    \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow do I know if this impeller fits my specific Yamaha model?\u003c\/summary\u003e\n        \u003cp\u003eThis impeller fits many Yamaha 6 HP and 8 HP 2-stroke outboards from 1984–2019. It also fits certain early 5 HP models and high-thrust (FT8) 4-stroke models, which may have a different OEM part number. Always cross-reference your engine's original part number with the numbers in our Part Number Matrix and check the compatibility table.\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 the engine overheating, a weak or non-existent water stream from the \"telltale\" outlet, and a dry, cracked, or brittle appearance of the old impeller upon inspection. You may also hear a whining sound from the lower unit.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow often should the water pump impeller be replaced?\u003c\/summary\u003e\n        \u003cp\u003eFor preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1-2 years or every 100-200 hours of use, depending on operating conditions (e.g., saltwater vs. freshwater, sandy\/silty water).\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eCan I install this myself?\u003c\/summary\u003e\n        \u003cp\u003eYes, many boat owners with basic mechanical skills can perform the replacement. However, it involves removing the lower unit. If you are not comfortable with this process or lack the proper tools, professional installation is recommended to prevent damage.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat's the difference between this and the original OEM part?\u003c\/summary\u003e\n        \u003cp\u003eThis is an aftermarket part designed to meet or exceed OEM specifications. It's made from high-quality neoprene rubber, similar to the original, offering a reliable and cost-effective alternative. It ensures proper fit and function for effective engine cooling.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat is an OEM part vs. an aftermarket part?\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\u003eWhat are the shipping speed and 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\u003eWhat is the warranty \u0026amp; return policy?\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\u003c\/section\u003e\n\n\u003csection\u003e\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\u003c\/section\u003e\n\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":50723979821371,"sku":"UK17IY010OC","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/UK17IY010OC.png?v=1763039185","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-fits-yamaha-6-8-hp-replaces-6g1-44352-00-00-18-3066","provider":"SeaSierra","version":"1.0","type":"link"}