{"product_id":"sierra-18-3047-neoprene-water-pump-impeller-kit-replaces-jabsco-13554-0001-yanmar-119773-42600-00-fits-crusader-305-350-454-cid-inboard","title":"Sierra 18-3047 Impeller Kit, Neoprene, Fits Crusader 305, 350 \u0026 454 CID Engines","description":"\u003cp\u003eThe Sierra 18-3047 Impeller Kit is a neoprene water pump impeller kit built to circulate raw cooling water through the engine's water pump on Crusader 305, 350, and 454 CID engines. The kit includes the 18-3061 impeller, a 12-fin neoprene component engineered to maintain consistent water flow and prevent overheating during operation. Neoprene construction offers strong resistance to heat, oil, and wear from continuous pump cycling, making it a durable choice for regular replacement intervals or as a spare kept onboard.\u003c\/p\u003e\u003cp\u003eThis impeller is interchangeable with common OEM and aftermarket cross-reference numbers, giving boat owners a reliable option when the original part number is not readily available. Installation follows standard water pump service procedures: the impeller seats inside the pump housing and its flexible fins draw and push water through the cooling circuit as the engine runs. Regular impeller replacement helps prevent dry-running damage and keeps engine temperatures within normal operating range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3047\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Impeller Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e 18-3061 Impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Neoprene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Fins:\u003c\/strong\u003e 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Crusader 305, 350, \u0026amp; 454 CID engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282243784\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e GLM 89621, Jabsco 18948-0001, Mallory 9-45706, Sherwood 10615K, Volvo Penta 835874\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eCrusader 305, 350, \u0026amp; 454 CID engines.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eGLM 89621, Jabsco 18948-0001, Mallory 9-45706, Sherwood 10615K, Volvo Penta 835874\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-3047 impeller kit fit?\u003c\/strong\u003e The Sierra 18-3047 impeller kit fits Crusader 305, 350, and 454 CID engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the 18-3047 kit?\u003c\/strong\u003e The kit includes the 18-3061 neoprene impeller, ready to install in the engine's water pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many fins does the impeller have?\u003c\/strong\u003e The impeller has 12 fins, which draw and circulate raw water through the cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3047 impeller made from?\u003c\/strong\u003e It is made from neoprene, chosen for its resistance to heat, oil, and repeated flexing during pump operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3047 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e Sierra 18-3047 is an aftermarket impeller kit manufactured to meet or exceed the performance of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does 18-3047 cross-reference with?\u003c\/strong\u003e It is interchangeable with GLM 89621, Jabsco 18948-0001, Mallory 9-45706, Sherwood 10615K, and Volvo Penta 835874.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sherwood 10615K impeller cross to the Sierra 18-3047?\u003c\/strong\u003e Yes, Sherwood 10615K is listed as an interchangeable cross-reference for the Sierra 18-3047 impeller kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3047 impeller kit weigh?\u003c\/strong\u003e The Sierra 18-3047 impeller kit weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many impellers come in one 18-3047 kit?\u003c\/strong\u003e One 18-3047 kit contains a single 18-3061 neoprene impeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this impeller work with a Volvo Penta 835874 pump?\u003c\/strong\u003e Yes, the Sierra 18-3047 is listed as interchangeable with Volvo Penta 835874.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know when to replace the impeller in my water pump?\u003c\/strong\u003e A worn or cracked impeller reduces raw water flow and can lead to engine overheating; the Sierra 18-3047 kit provides a direct replacement impeller for Crusader 305, 350, and 454 CID engines when service is due.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3047 impeller compatible with Mallory 9-45706 applications?\u003c\/strong\u003e Yes, Mallory 9-45706 is one of the OEM cross-reference numbers for the Sierra 18-3047 impeller kit.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988137357531,"sku":"SIE-18-3047","price":37.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3047_lg__53934.1558123331.500.750.jpg?v=1785188882","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3047-neoprene-water-pump-impeller-kit-replaces-jabsco-13554-0001-yanmar-119773-42600-00-fits-crusader-305-350-454-cid-inboard","provider":"Good Vibes Marina","version":"1.0","type":"link"}