{"product_id":"sierra-18-3075-neoprene-impeller-kit-volvo-penta-875575","title":"Sierra 18-3075 Neoprene Impeller Kit | 12-Fin, 2-1\/4 in. | Volvo Penta 875575 \/ Johnson 09-801B","description":"\u003ch2\u003eSierra 18-3075 Neoprene Impeller Kit\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 18-3075 (Sierra)  |  \u003cstrong\u003eCatalog Number:\u003c\/strong\u003e 47-3075  |  \u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/p\u003e\n\u003cp\u003eSierra \u003cstrong\u003e18-3075\u003c\/strong\u003e is a 12-fin neoprene flexible impeller kit for selected Volvo Penta and Johnson Pump \/ Jabsco raw-water pump applications. It restores proper seawater circulation when the original impeller has become worn, hardened, cracked, or damaged.\u003c\/p\u003e\n\u003cp\u003eThe impeller measures approximately \u003cstrong\u003e2-1\/4 in. \/ 57.2 mm outside diameter\u003c\/strong\u003e and \u003cstrong\u003e1-1\/4 in. \/ 31.8 mm wide\u003c\/strong\u003e, and directly cross-references Volvo Penta \u003cstrong\u003e875575\u003c\/strong\u003e and \u003cstrong\u003e21951350\u003c\/strong\u003e, Johnson Pump \u003cstrong\u003e09-801B\u003c\/strong\u003e, and Jabsco \u003cstrong\u003e4568-0001\u003c\/strong\u003e and \u003cstrong\u003e2877-0001\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3075\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog \/ Item Number:\u003c\/strong\u003e 47-3075\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Flexible Impeller Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Neoprene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFins \/ Blades:\u003c\/strong\u003e 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 2-1\/4 in. \/ 57.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 1-1\/4 in. \/ 31.8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Marine engine raw-water (seawater) cooling pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 30999315274\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp\u003eFitment is determined by the installed seawater pump model or existing impeller number, not by engine displacement alone. Confirmed cross-references:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e875575\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e21951350\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJohnson Pump \u003cstrong\u003e09-801B\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJabsco \u003cstrong\u003e4568-0001\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eJabsco \u003cstrong\u003e2877-0001\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eGLM \u003cstrong\u003e89530\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMallory \u003cstrong\u003e9-45701\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOberdorfer \u003cstrong\u003eB6620\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore ordering, confirm the existing pump model or original impeller part number. Marine flexible impellers can have nearly identical outside diameters while differing in width, hub style, or blade count — match by number, not by appearance.\u003c\/p\u003e\n\n\u003ch2\u003eFitment Notice\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, verify all of the following match the existing impeller or pump specification:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e12 fins \/ blades\u003c\/li\u003e\n\u003cli\u003eOutside diameter: \u003cstrong\u003e2-1\/4 in. \/ 57.2 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWidth: \u003cstrong\u003e1-1\/4 in. \/ 31.8 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNeoprene compound (for clean fresh water, salt water, and standard engine-cooling circuits)\u003c\/li\u003e\n\u003cli\u003eOriginal reference: Volvo Penta \u003cstrong\u003e875575\u003c\/strong\u003e, Johnson \u003cstrong\u003e09-801B\u003c\/strong\u003e, or Jabsco \u003cstrong\u003e4568-0001 \/ 2877-0001\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eInspect the impeller at each annual cooling-system service. Replace immediately when any of the following are observed:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduced or absent raw-water flow at the exhaust outlet\u003c\/li\u003e\n\u003cli\u003eRising engine temperature during operation\u003c\/li\u003e\n\u003cli\u003eBlades cracked, torn, hardened, or permanently set\u003c\/li\u003e\n\u003cli\u003eBlade tips or material missing — inspect all downstream hoses, heat exchangers, and oil coolers before fitting the replacement\u003c\/li\u003e\n\u003cli\u003ePump has operated dry (replace immediately)\u003c\/li\u003e\n\u003cli\u003eImpeller service history is unknown\u003c\/li\u003e\n\u003cli\u003eAnnual preventive service interval reached\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClose the raw-water intake seacock before disassembly\u003c\/li\u003e\n\u003cli\u003eRemove the pump cover and extract the old impeller — inspect all blades and account for any missing pieces before proceeding\u003c\/li\u003e\n\u003cli\u003eInspect the pump bore, cam surface, shaft, and cover plate for scoring or wear\u003c\/li\u003e\n\u003cli\u003eRemove all fragments of the previous impeller from the pump body and downstream passages\u003c\/li\u003e\n\u003cli\u003eLubricate the impeller blades and bore with glycerin or dish soap — do not use petroleum-based lubricants\u003c\/li\u003e\n\u003cli\u003eInstall the new impeller, aligning the hub to the drive shaft, and press fully into the bore\u003c\/li\u003e\n\u003cli\u003eReplace the cover gasket from the kit\u003c\/li\u003e\n\u003cli\u003eOpen the seacock and confirm strong water flow at the exhaust immediately after startup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSierra:\u003c\/strong\u003e 18-3075\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog ref:\u003c\/strong\u003e 47-3075\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 875575\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 21951350\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohnson Pump:\u003c\/strong\u003e 09-801B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJabsco:\u003c\/strong\u003e 4568-0001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJabsco:\u003c\/strong\u003e 2877-0001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLM:\u003c\/strong\u003e 89530\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMallory:\u003c\/strong\u003e 9-45701\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOberdorfer:\u003c\/strong\u003e B6620\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 30999315274\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11110181535780\"\u003eJabsco 4568-0001-P Profile K Neoprene Impeller Kit\u003c\/a\u003e — Jabsco OEM equivalent kit for this impeller family\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11110180454436\"\u003eVolvo Neoprene Impeller Kit\u003c\/a\u003e — OEM-style Volvo Penta impeller kit\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11110181044260\"\u003eJabsco 1210-0001-P Neoprene Impeller Kit\u003c\/a\u003e — related Jabsco impeller kit for the 1210-series pump family\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e Sierra 18-3075 is the correct annual-service impeller for Volvo Penta raw-water pump applications specifying \u003cstrong\u003e875575 or 21951350\u003c\/strong\u003e, and for any Johnson Pump or Jabsco pump calling for \u003cstrong\u003e09-801B, 4568-0001, or 2877-0001\u003c\/strong\u003e. It's a well-stocked aftermarket kit at a reliable price point when OEM lead times are long.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon issues:\u003c\/strong\u003e The most frequent ordering mistake with this family is selecting by outside diameter alone — several other impellers share the 57 mm diameter but differ in width or hub type and are not interchangeable. The \u003cstrong\u003e1-1\/4 in. width and 12-fin count\u003c\/strong\u003e are the key differentiators. Always start with the number on the existing impeller or pump tag. If blade pieces are missing after removal, inspect the full downstream circuit — thermostat housing, oil cooler, and heat exchanger — before fitting the new impeller.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51156140294180,"sku":"47-3075","price":101.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-3075.jpg?v=1784926835","url":"https:\/\/marisolmarine.com\/products\/sierra-18-3075-neoprene-impeller-kit-volvo-penta-875575","provider":"Marisol Marine Company","version":"1.0","type":"link"}