{"product_id":"impeller-kit-fits-johnson-jabsco-volvo-penta-yanmar-replaces-4528-0001-09-806b","title":"Impeller Kit – Fits Johnson\/Jabsco\/Volvo Penta\/Yanmar (Replaces 4528-0001, 09-806B)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eMarine Impeller Kit – Fits Johnson\/Jabsco\/Volvo Penta\/Yanmar (Replaces 4528-0001, 09-806B)\u003c\/strong\u003e is designed for marine engine raw water\/sea water cooling pumps. It serves as a direct replacement for Johnson 09-806B, Jabsco 4528-0001, and several other OEM part numbers across major marine engine manufacturers.\u003c\/p\u003e\n\u003cp\u003eIt provides a direct interchange for numerous OEM and aftermarket part numbers, including equivalents from Ancor, CEF, Perkins, Sherwood, and more.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures a slotted shaft pin drive for installation.\u003c\/li\u003e\n\u003cli\u003eEngineered for reliable performance in raw seawater cooling systems.\u003c\/li\u003e\n\u003cli\u003eThe kit includes one impeller and multiple gaskets to fit a variety of pump housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket brands.\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\u003eAncor\u003c\/td\u003e\n\u003ctd\u003e5043\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCEF\u003c\/td\u003e\n\u003ctd\u003e500100\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJabsco\u003c\/td\u003e\n\u003ctd\u003e4528-0001 \/ 8293-0001 \/ 22429-0001\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003e09-806B \/ 09-806B-1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOnan\u003c\/td\u003e\n\u003ctd\u003e132-0859\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePerkins\u003c\/td\u003e\n\u003ctd\u003e24880272\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSherwood\u003c\/td\u003e\n\u003ctd\u003e9979\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-8952\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVetus\u003c\/td\u003e\n\u003ctd\u003eIMP00501\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e803729 \/ 833550 \/ 875807 \/ 875807-0 \/ 876554-7 \/ 3586494\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYanmar\u003c\/td\u003e\n\u003ctd\u003e104211-42070 \/ 104211-42071\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 and original part number in the tables below.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eVolvo Penta Applications:\u003c\/b\u003e This impeller replaces multiple Volvo Penta part numbers used in various raw water cooling pumps.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eYanmar Applications:\u003c\/b\u003e This impeller replaces Yanmar part numbers 104211-42070 and 104211-42071, commonly found in their marine engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePerkins\/Kohler Applications:\u003c\/b\u003e Replaces Perkins 24880272, which is frequently used in cooling systems for Kohler generators powered by Perkins engines like the M20.\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\u003ePerkins\u003c\/td\u003e\n        \u003ctd\u003eM20\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e24880272\u003c\/td\u003e\n        \u003ctd\u003eUsed in KOHLER generators\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e803729, 833550, 875807-0, 876554-7, 3586494\u003c\/td\u003e\n        \u003ctd\u003eUsed in raw water cooling pumps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e104211-42070, 104211-42071\u003c\/td\u003e\n        \u003ctd\u003eUsed in raw water cooling pumps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e132-0859\u003c\/td\u003e\n        \u003ctd\u003eUsed in marine generators\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\u003eFlexible Impeller Kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eSlotted Shaft Pin Drive\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e39.7 mm diameter × 19.2 mm width\u003c\/dd\u003e\n  \u003cdt\u003eShaft Diameter\u003c\/dt\u003e\n\u003cdd\u003e9.5 mm\u003c\/dd\u003e\n  \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n  \u003cdt\u003eInsert Type\u003c\/dt\u003e\n\u003cdd\u003eSlotted Shaft Pin Drive\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.15 lbs (0.068 kg)\u003c\/dd\u003e\n  \u003cdt\u003eKit Contents\u003c\/dt\u003e\n\u003cdd\u003eIncludes impeller and multiple gaskets\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × JMP Flexible Impeller (7001-01)\u003c\/li\u003e\n  \u003cli\u003e1 × Gasket (GAK0033)\u003c\/li\u003e\n  \u003cli\u003e1 × Gasket (GAK0034)\u003c\/li\u003e\n  \u003cli\u003e1 × Gasket (GAK0035)\u003c\/li\u003e\n  \u003cli\u003e1 × Gasket (GAK0056)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e*Note: Some applications may not require all gaskets included in the kit.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the vessel's battery and close the raw water intake seacock.\u003c\/li\u003e\n  \u003cli\u003ePlace absorbent pads below the pump to catch any water spillage.\u003c\/li\u003e\n  \u003cli\u003eRemove the screws holding the pump's end cover plate.\u003c\/li\u003e\n  \u003cli\u003eGently pry off the old impeller using needle-nose pliers or a dedicated impeller puller.\u003c\/li\u003e\n  \u003cli\u003eClean any debris or old gasket material from the pump housing interior and cover plate.\u003c\/li\u003e\n  \u003cli\u003eLubricate the new impeller and housing with a water-based marine lubricant or glycerin.\u003c\/li\u003e\n  \u003cli\u003eInstall the new impeller with a slight twisting motion, ensuring the blades bend in the correct direction of pump rotation.\u003c\/li\u003e\n  \u003cli\u003ePlace the correct new gasket for your pump model onto the housing.\u003c\/li\u003e\n  \u003cli\u003eReinstall the end cover plate and tighten the screws evenly.\u003c\/li\u003e\n  \u003cli\u003eOpen the seacock, reconnect the battery, and start the engine.\u003c\/li\u003e\n  \u003cli\u003eImmediately check for adequate water flow from the exhaust and inspect the pump for any leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this impeller fits my pump?\u003c\/summary\u003e\u003cp\u003eThe best way is to match your old part number to a number in our Part Number Matrix. If you cannot find a match, compare the dimensions (diameter, width, shaft size) listed in the Technical Specs to your old impeller. Do not rely on engine model alone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include engine temperatures rising above normal, a noticeable reduction in water flow from the exhaust outlet, and visible cracks, tears, or stiff\/brittle blades on the impeller itself during inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I replace my raw water pump impeller?\u003c\/summary\u003e\u003cp\u003eAs a general rule, replace your impeller annually or every 100-200 hours of engine operation, whichever comes first. More frequent replacement may be necessary if you operate in heavily silted or sandy waters.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a direct replacement for Johnson 09-806B-1?\u003c\/summary\u003e\u003cp\u003eYes, this kit is a direct aftermarket replacement for both the Johnson 09-806B and 09-806B-1 impellers, manufactured to the same dimensional and material specifications for fit and performance.\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). It's built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, with batch inspections 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 is 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\u003eOur parts are covered by a 1-year warranty against manufacturing defects under normal use. If an issue arises, contact our support team with your order details. Returns are accepted within our standard window for unused items in their 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 and specifications against your original part before ordering. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement component, not an Original Equipment Manufacturer (OEM) part.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for safety and to ensure optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cb\u003ePro-Grade Standards\u003c\/b\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eFast Global Fulfillment\u003c\/b\u003e — Free standard delivery to most regions, with typical transit times of 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eManufacturer-Direct Value\u003c\/b\u003e — By removing middlemen, we offer 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":50717897130299,"sku":"G0P8ap8BPpr","price":17.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/G0P8ap8BPpr.png?v=1762937731","url":"https:\/\/seasierra.com\/products\/impeller-kit-fits-johnson-jabsco-volvo-penta-yanmar-replaces-4528-0001-09-806b","provider":"SeaSierra","version":"1.0","type":"link"}