{"product_id":"sierra-18-3089-impeller-repair-kit-johnson-pump-volvo-penta","title":"Sierra 18-3089 \/ 47-3089 Impeller Repair Kit - Johnson Pump \/ Volvo Penta","description":"\u003ch2\u003eSierra Johnson Pump \/ Volvo Water Pump Impeller Repair Kit – 47-3089 \/ 18-3089\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e47-3089\u003c\/strong\u003e is a complete Sierra \u003cstrong\u003e18-3089\u003c\/strong\u003e impeller repair kit for compatible Johnson Pump crank-mounted raw-water pumps used in Volvo Penta and other marine-engine cooling systems. It replaces Johnson Pump service kit \u003cstrong\u003e09-45825\u003c\/strong\u003e and includes the main components required to renew the impeller and pump sealing surfaces without replacing the complete pump assembly.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCatalogue item number: \u003cstrong\u003e47-3089\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSierra manufacturer number: \u003cstrong\u003e18-3089\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexible neoprene raw-water pump impeller\u003c\/li\u003e\n\u003cli\u003eApproximately \u003cstrong\u003e2.25 in. \/ 57.1 mm diameter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eApproximately \u003cstrong\u003e1.90 in. \/ 48.2 mm wide\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12 flexible blades\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12-spline drive hub\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible Johnson F6B-series crank-mounted pumps\u003c\/li\u003e\n\u003cli\u003eUPC: \u003cstrong\u003e030999753083\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003cp\u003eThe Sierra 18-3089 service kit includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFlexible impeller\u003c\/li\u003e\n\u003cli\u003ePump shaft lip seal\u003c\/li\u003e\n\u003cli\u003eSeal washer\u003c\/li\u003e\n\u003cli\u003ePump-cover gasket\u003c\/li\u003e\n\u003cli\u003ePump-cover screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKit contents may be packaged differently by production run, but the 18-3089 is supplied as a pump-service kit rather than an impeller-only replacement.\u003c\/p\u003e\n\u003ch2\u003ePump \/ Engine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe 47-3089 \/ Sierra 18-3089 fits compatible Johnson Pump crank-mounted raw-water pumps, including applications associated with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24232-1\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24232-2\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24232-3\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24232-4\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24232-5\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24232-6\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24232-7\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24234-1\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24234-2\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24302-01\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24302-02\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24316-01\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e10-24316-02\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eComplete replacement-pump reference \u003cstrong\u003e18-3587\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNorthern Lights \/ Indmar pump reference \u003cstrong\u003e25-11030\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlaska Diesel reference \u003cstrong\u003eL6414A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment Notice\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm that the installed pump uses Johnson service kit \u003cstrong\u003e09-45825\u003c\/strong\u003e or Sierra \u003cstrong\u003e18-3089\u003c\/strong\u003e. The replacement impeller should measure approximately \u003cstrong\u003e57 mm in diameter by 48 mm wide\u003c\/strong\u003e and use a \u003cstrong\u003e12-spline hub\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDo not select this kit solely by engine make or the appearance of the impeller. Similar Johnson and Volvo Penta impellers can share the same diameter and blade count while differing in width, hub configuration or required sealing components.\u003c\/p\u003e\n\u003ch2\u003eWhen This Part Needs Replacement\u003c\/h2\u003e\n\u003cp\u003eReplace the impeller kit when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCooling-water flow becomes weak or intermittent\u003c\/li\u003e\n\u003cli\u003eThe engine begins operating hotter than normal\u003c\/li\u003e\n\u003cli\u003eThe pump struggles to prime\u003c\/li\u003e\n\u003cli\u003eThe impeller blades are cracked, torn or permanently curled\u003c\/li\u003e\n\u003cli\u003eThe neoprene has become hard or brittle\u003c\/li\u003e\n\u003cli\u003eWater leaks from the pump shaft seal\u003c\/li\u003e\n\u003cli\u003eThe pump has operated without water\u003c\/li\u003e\n\u003cli\u003eAnnual or seasonal cooling-system service is due\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf pieces are missing from the old impeller, inspect downstream hoses, coolers and heat exchangers for trapped fragments before restarting the engine.\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect the battery and close the raw-water intake seacock.\u003c\/li\u003e\n\u003cli\u003eNote the pump-cover and hose orientation before disassembly.\u003c\/li\u003e\n\u003cli\u003eRemove the old impeller without damaging the pump bore.\u003c\/li\u003e\n\u003cli\u003eInspect the shaft, cam, bearings and cover plate for excessive wear.\u003c\/li\u003e\n\u003cli\u003eRemove the old shaft seal carefully to avoid scoring the seal bore.\u003c\/li\u003e\n\u003cli\u003eInstall the new lip seal in the correct direction.\u003c\/li\u003e\n\u003cli\u003eLightly lubricate the impeller with glycerine or a suitable water-based impeller lubricant.\u003c\/li\u003e\n\u003cli\u003eAlign the 12-spline hub carefully with the pump shaft.\u003c\/li\u003e\n\u003cli\u003eInstall the supplied gasket and cover screws.\u003c\/li\u003e\n\u003cli\u003eTighten the cover screws evenly.\u003c\/li\u003e\n\u003cli\u003eRestore the raw-water supply before starting the engine.\u003c\/li\u003e\n\u003cli\u003eVerify strong cooling-water flow and inspect the pump for leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA pump with a damaged shaft, loose bearings or a deeply scored housing may require complete replacement rather than an impeller service kit.\u003c\/p\u003e\n\u003ch2\u003eAlternate \/ Cross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCatalogue \/ LNS: \u003cstrong\u003e47-3089\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSierra: \u003cstrong\u003e18-3089\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump: \u003cstrong\u003e09-45825\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMallory Marine: \u003cstrong\u003e9-45700\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible complete pump reference: \u003cstrong\u003eSierra 18-3587\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNorthern Lights \/ Indmar pump reference: \u003cstrong\u003e25-11030\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlaska Diesel: \u003cstrong\u003eL6414A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUPC: \u003cstrong\u003e030999753083\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eParts Desk Insight\u003c\/h2\u003e\n\u003cp\u003eThe 47-3089 is more than a loose replacement impeller — it also supplies the shaft seal, sealing washer, cover gasket and screws needed for a more complete Johnson pump service. The safest identification is to match \u003cstrong\u003e09-45825 or Sierra 18-3089\u003c\/strong\u003e and confirm the \u003cstrong\u003e57 × 48 mm, 12-spline impeller\u003c\/strong\u003e before dismantling the pump. If the pump housing or shaft is damaged beyond service, consider a complete pump replacement. For an alternative impeller-only option for compatible Johnson Pump applications, see the \u003ca href=\"\/products\/arco-ip003-johnson-pump-replacement-impeller\"\u003eArco IP003 Johnson Pump Replacement Impeller\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eCompatible \u0026amp; Related Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arco-ip003-johnson-pump-replacement-impeller\"\u003eArco IP003 Johnson Pump Replacement Impeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sierra-marine-water-pump-kit-18-3217\"\u003eSierra 18-3217 Marine Water Pump Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51156135641124,"sku":"47-3089","price":196.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-3089.jpg?v=1784926754","url":"https:\/\/marisolmarine.com\/products\/sierra-18-3089-impeller-repair-kit-johnson-pump-volvo-penta","provider":"Marisol Marine Company","version":"1.0","type":"link"}