{"product_id":"water-pump-wear-plate-fits-yamaha-f40-f70-4-stroke-replaces-6cj-44323-00","title":"Water Pump Wear Plate – Fits Yamaha F40 F70 4-Stroke (Replaces 6CJ-44323-00)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\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  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\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\u003eWater Pump Wear Plate\u003c\/strong\u003e is designed for Yamaha 4-stroke outboard engines including the F40 and F70 series. It provides a critical wear surface within the water pump assembly, protecting the pump housing and ensuring efficient coolant flow throughout the powerhead.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket component directly replaces Yamaha OEM part number 6CJ-44323-00-00.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEssential water pump component subject to normal wear\u003c\/li\u003e\n\u003cli\u003eFits multiple Yamaha F40 and F70 4-stroke configurations\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to OEM specifications for reliable sealing and durability\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\u003e6CJ-44323-00\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6CJ-44323-00-00\u003c\/td\u003e\n        \u003ctd\u003eFull OEM part number\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\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\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\u003eF40G ETL\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6CJ-44323-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF40G ETS\/L\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6CJ-44323-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF70 L\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6CJ-44323-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF70A ETL\/X\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6CJ-44323-00-00\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\u003eComponent Type\u003c\/dt\u003e\n  \u003cdd\u003eWater Pump Wear Plate\u003c\/dd\u003e\n  \u003cdt\u003eOEM Part Number\u003c\/dt\u003e\n  \u003cdd\u003e6CJ-44323-00\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eYamaha 4-Stroke Outboards\u003c\/dd\u003e\n  \u003cdt\u003ePrimary Fitment\u003c\/dt\u003e\n  \u003cdd\u003eF40, F70 Series\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Water Pump Wear Plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect battery and relieve any cooling system pressure before beginning work.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to your engine service manual.\u003c\/li\u003e\n  \u003cli\u003eDisassemble the water pump housing and remove the old impeller and wear plate.\u003c\/li\u003e\n  \u003cli\u003eClean all mating surfaces thoroughly, removing old gasket material and debris.\u003c\/li\u003e\n  \u003cli\u003ePosition the new wear plate in the pump housing with the smooth side facing the impeller.\u003c\/li\u003e\n  \u003cli\u003eInstall a new impeller, applying marine grease to the blades for lubrication during initial startup.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water pump housing with new gaskets and seals as required.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, torque all fasteners to specification, and refill the lower unit gear oil.\u003c\/li\u003e\n  \u003cli\u003eTest the cooling system by running the engine with water supply and checking for steady telltale stream.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know when to replace the wear plate?\u003c\/summary\u003e\u003cp\u003eReplace the wear plate whenever you service the water pump or if you notice reduced cooling performance, overheating, or weak telltale stream. Inspect for grooves, scoring, or uneven wear during routine impeller replacement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I reuse the old wear plate?\u003c\/summary\u003e\u003cp\u003eReusing a worn plate is not recommended. Even minor scoring can reduce sealing efficiency and impeller lifespan, risking engine overheating.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShould I replace the impeller at the same time?\u003c\/summary\u003e\u003cp\u003eYes. The wear plate and impeller work together; replacing both ensures optimal water pump performance and prevents premature failure of the new impeller.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich side of the wear plate faces the impeller?\u003c\/summary\u003e\u003cp\u003eInstall the wear plate with the smooth, flat side facing the impeller to reduce friction and extend component life.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat causes wear plate damage?\u003c\/summary\u003e\u003cp\u003eCommon causes include abrasive debris in the cooling system, dry-running the water pump, corrosion, and normal friction over time.\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 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\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","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":51025604935995,"sku":"2319","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Aa8e61297aa0e4433a18575dd50343141L.webp?v=1772931788","url":"https:\/\/seasierra.com\/products\/water-pump-wear-plate-fits-yamaha-f40-f70-4-stroke-replaces-6cj-44323-00","provider":"SeaSierra","version":"1.0","type":"link"}