{"product_id":"flexible-impeller-fits-johnson-water-pump-f7-replaces-johnson-09-1028b-9","title":"Flexible Impeller – Fits Johnson Water Pump F7 (Replaces Johnson 09-1028B-9)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eFlexible Impeller – Fits Johnson Water Pump F7 (Replaces 09-1028B-9)\u003c\/strong\u003e is designed for engine cooling water pumps, specifically for the Johnson F7 pump series. It is made from a durable, oil-resistant nitrile compound and features a 12-spline drive for reliable performance. This component is a critical part of the engine's cooling system, ensuring proper water circulation.\u003c\/p\u003e\n\u003cp\u003eThis impeller serves as a direct replacement for a wide range of part numbers from brands including Johnson, Jabsco, Sherwood, Volvo, YANMAR, and more. See the Part Number Matrix for a full list of interchanges.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered for direct, hassle-free installation.\u003c\/li\u003e\n\u003cli\u003eOil-resistant nitrile material provides longevity in marine environments.\u003c\/li\u003e\n\u003cli\u003eIncludes the essential impeller, gasket, and O-ring for a complete service.\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.\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\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003e09-1028B-9\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJabsco\u003c\/td\u003e\n\u003ctd\u003e17937-0003\/920-0001\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSherwood\u003c\/td\u003e\n\u003ctd\u003e18200K\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e801277\/825941\/877061-2\/875593\/3841697\/21951356\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYANMAR\u003c\/td\u003e\n\u003ctd\u003e127610-42270\/123325-42020\/120650-42310\/127610-42200\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCEF\u003c\/td\u003e\n\u003ctd\u003e500106 GT\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJMP\u003c\/td\u003e\n\u003ctd\u003e7400-01\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eKashiyama\u003c\/td\u003e\n\u003ctd\u003e65.06804-0003\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eONAN\u003c\/td\u003e\n\u003ctd\u003e0132-0436\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eKOHLER\u003c\/td\u003e\n\u003ctd\u003eGM50644\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDJ\u003c\/td\u003e\n\u003ctd\u003e001-0801\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSolé\u003c\/td\u003e\n\u003ctd\u003e34711008\/34711008R\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\u003eThis impeller is known to fit certain models from Detroit Diesel, Caterpillar, Chrysler, and Perkins, though specific application details vary. Verify your 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\u003eOEM Part No.\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDetroit Diesel\u003c\/td\u003e\n        \u003ctd\u003e353, 453, 471\u003c\/td\u003e\n        \u003ctd\u003e5145578\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCaterpillar\u003c\/td\u003e\n        \u003ctd\u003e[Data Needed]\u003c\/td\u003e\n        \u003ctd\u003e425-5412\/4255412\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eChrysler\u003c\/td\u003e\n        \u003ctd\u003eM46-4\/M47-4, 8170F\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003ePerkins\u003c\/td\u003e\n        \u003ctd\u003eFull Cam, 6354\/6.354\/6-354\u003c\/td\u003e\n        \u003ctd\u003e2488275\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003ePerkins\u003c\/td\u003e\n        \u003ctd\u003eSabre\u003c\/td\u003e\n        \u003ctd\u003e34449\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatible Pumps\u003c\/h3\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Compatible Pumps\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePump Model\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\u003eJabsco\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e17050-0001, 29630-1101, 8170, 9700-01, 9700-04, 2300-9005, 8170-9001, 29630-1201\u003c\/td\u003e\n        \u003ctd\u003e2300-9005 listed as optional\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJohnson\u003c\/td\u003e\n        \u003ctd\u003eF7B-8007, F7B-3007, F7B-50017, F7B-5007, F7B-9\u003c\/td\u003e\n        \u003ctd\u003e10-24572-51, 10-24209-7, 10-24577-98, 10-24116-98, 10-24398-01, 10-24398-02, 10-24907-01, 10-24428-01\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\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eFlexible Impeller for Engine Cooling Water Pump\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNitrile (oil-resistant)\u003c\/dd\u003e\n  \u003cdt\u003eDrive Type\u003c\/dt\u003e\n\u003cdd\u003e12 Spline Drive\u003c\/dd\u003e\n  \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e8\u003c\/dd\u003e\n  \u003cdt\u003eDiameter\u003c\/dt\u003e\n\u003cdd\u003e65 mm (2.56\")\u003c\/dd\u003e\n  \u003cdt\u003eWidth\u003c\/dt\u003e\n\u003cdd\u003e50.2 mm (1.98\")\u003c\/dd\u003e\n  \u003cdt\u003eShaft Diameter\u003c\/dt\u003e\n\u003cdd\u003e16 mm (5\/8\")\u003c\/dd\u003e\n  \u003cdt\u003eInsert Material\u003c\/dt\u003e\n\u003cdd\u003eBrass\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e65 mm diameter × 50.2 mm width (2.56\" × 1.98\")\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e49.9 g (1.76 oz)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eOil-resistant nitrile rubber compound\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 Flexible Impeller\u003c\/li\u003e\n  \u003cli\u003e1 x Gasket\u003c\/li\u003e\n  \u003cli\u003e1 x O-Ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n    \u003cli\u003eEnsure the engine is off and cool. Close the seacock to prevent water from entering the vessel.\u003c\/li\u003e\n    \u003cli\u003ePlace an absorbent towel under the pump to catch any water spillage.\u003c\/li\u003e\n    \u003cli\u003eRemove the pump cover screws and the cover plate.\u003c\/li\u003e\n    \u003cli\u003eUse needle-nose pliers or an impeller puller tool to carefully remove the old impeller.\u003c\/li\u003e\n    \u003cli\u003eNote the orientation of the blades on the old impeller as you remove it; the new one should be installed with blades bent in the same direction.\u003c\/li\u003e\n    \u003cli\u003eClean the inside of the pump housing and the cover plate, removing any old gasket material or debris.\u003c\/li\u003e\n    \u003cli\u003eLightly lubricate the inside of the pump housing and the new impeller with a water-based lubricant or glycerine. Do not use petroleum-based grease.\u003c\/li\u003e\n    \u003cli\u003eInstall the new gasket and O-ring.\u003c\/li\u003e\n    \u003cli\u003eInsert the new impeller by squeezing the blades together and pushing it into the housing with a rotating motion in the direction of the pump's operation.\u003c\/li\u003e\n    \u003cli\u003eReplace the cover plate and tighten the screws evenly. Do not overtighten.\u003c\/li\u003e\n    \u003cli\u003eOpen the seacock, start the engine, and immediately check for leaks and proper water flow.\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 this impeller fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eThe best way to confirm fitment is to match your existing part number to the ones listed in our Part Number Matrix. While we list compatible engine models, manufacturers may use different pumps on the same model. Always verify by the part number on the impeller or in your engine's service manual.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include engine overheating, reduced water flow from the exhaust, visible cracks or missing blades on the impeller, or a stiff and brittle texture. If you notice any of these, the impeller should be inspected and likely replaced.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace my water pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eAs a general rule, it's recommended to inspect your impeller annually and replace it every 1-2 years, or after a specific number of engine hours as recommended by your engine manufacturer. Replacement intervals can be shorter in water with high levels of sand or silt.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I install the impeller with the blades bent the wrong way?\u003c\/summary\u003e\n  \u003cp\u003eNo. While the pump will likely correct the blade direction on its first rotation, forcing them to flip can cause premature wear or damage to the blades. It's best practice to pre-bend them in the correct orientation during installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between Nitrile and Neoprene impellers?\u003c\/summary\u003e\n  \u003cp\u003eNitrile (used in this impeller) is oil-resistant, making it ideal for engine cooling pumps where oil or fuel contamination is possible. Neoprene is more flexible and is typically used for general water-pumping duties where oil is not present.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs a special tool required for installation?\u003c\/summary\u003e\n  \u003cp\u003eWhile often not strictly necessary, an impeller puller can make removal much easier, especially in tight spaces. Needle-nose pliers can also work but require more care to avoid damaging the pump housing.\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\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003eManufacturer-Direct Value — 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":50717906272571,"sku":"4I-77MT-ET9Z","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/4I-77MT-ET9Z.png?v=1762938078","url":"https:\/\/seasierra.com\/products\/flexible-impeller-fits-johnson-water-pump-f7-replaces-johnson-09-1028b-9","provider":"SeaSierra","version":"1.0","type":"link"}