{"product_id":"sierra-18-8950-water-pump-impeller-for-yanmar-2gm-3gm-3hm-marine-diesel-replaces-yanmar-124223-42092","title":"Sierra 18-8950 Impeller, Replaces Yanmar 124223-42092, Fits 2GM20F 3GM30F 3HM Diesel Engines","description":"\u003cp\u003eThe Sierra 18-8950 is a replacement water pump impeller engineered for Yanmar diesel engines, designed to keep raw water circulating through the engine's cooling system so it runs at proper operating temperature. The impeller is the wear component inside the raw water pump; its flexible vanes flex as they rotate to draw in and push cooling water through the engine, and like all rubber impellers it should be inspected and replaced on a routine schedule to prevent overheating and pump housing damage from a cracked or worn-out unit.\u003c\/p\u003e\u003cp\u003eThis impeller is manufactured to OEM-approved specifications and cross-references directly to Yanmar part number 124223-42092, making it a direct fit replacement for the factory impeller on a wide range of Yanmar marine diesel engines. It is finished in red for easy identification during service. The 18-8950 is sold as the impeller only, ready to install into the existing raw water pump housing.\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 18-8950\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.09 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 3.9 L x 10 W x 11.5 H (Centimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Teleflex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282303778\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e Yanmar 124223-42092\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 2GM20F, 2GMF, 2QM, 2QM20, 3GM30F, 3GMF, 3HM, 3HM35, 3HM35F, 3HMF, 3QM30, 3QM30F\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYanmar 2GM20F\u003c\/li\u003e\n\u003cli\u003eYanmar 2GMF\u003c\/li\u003e\n\u003cli\u003eYanmar 2QM\u003c\/li\u003e\n\u003cli\u003eYanmar 2QM20\u003c\/li\u003e\n\u003cli\u003eYanmar 3GM30F\u003c\/li\u003e\n\u003cli\u003eYanmar 3GMF\u003c\/li\u003e\n\u003cli\u003eYanmar 3HM\u003c\/li\u003e\n\u003cli\u003eYanmar 3HM35\u003c\/li\u003e\n\u003cli\u003eYanmar 3HM35F\u003c\/li\u003e\n\u003cli\u003eYanmar 3HMF\u003c\/li\u003e\n\u003cli\u003eYanmar 3QM30\u003c\/li\u003e\n\u003cli\u003eYanmar 3QM30F\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eYanmar 124223-42092\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8950 impeller fit?\u003c\/strong\u003e The Sierra 18-8950 impeller fits Yanmar 2GM20F, 2GMF, 2QM, 2QM20, 3GM30F, 3GMF, 3HM, 3HM35, 3HM35F, 3HMF, 3QM30, and 3QM30F diesel engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-8950 replace?\u003c\/strong\u003e It replaces Yanmar part number 124223-42092, so it is a direct equivalent for that factory impeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-8950 impeller?\u003c\/strong\u003e It is red.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8950 impeller weigh?\u003c\/strong\u003e The impeller weighs 0.09 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the 18-8950?\u003c\/strong\u003e The packaged impeller measures 3.9 L x 10 W x 11.5 H in centimeters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8950 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-8950 is a genuine Sierra impeller manufactured to OEM-approved specifications, not a generic aftermarket clone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8950 come with a warranty?\u003c\/strong\u003e Yes, Sierra part 18-8950 is covered by a limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when you order the 18-8950?\u003c\/strong\u003e The order includes the Sierra 18-8950 impeller itself; no additional gaskets or hardware are included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-8950 fit a Yanmar 1GM or 1GM10?\u003c\/strong\u003e No. The Yanmar 1GM and 1GM10 use a different Sierra impeller, part number 18-8951, not the 18-8950.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-8950 impeller?\u003c\/strong\u003e The UPC for the Sierra 18-8950 impeller is 808282303778.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know when to replace the impeller on my Yanmar engine?\u003c\/strong\u003e Impellers like the Sierra 18-8950 are wear items and should be inspected regularly and replaced if the rubber vanes show cracking, chunking, or set, since a failed impeller can cause the Yanmar engine to overheat.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8950 impeller compatible with both gas and diesel Yanmar engines?\u003c\/strong\u003e The 18-8950 is fitted to the Yanmar diesel engine models 2GM20F, 2GMF, 2QM, 2QM20, 3GM30F, 3GMF, 3HM, 3HM35, 3HM35F, 3HMF, 3QM30, and 3QM30F.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435775707,"sku":"SIE-18-8950","price":41.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8950__84376.1558186772.500.750.jpg?v=1785188303","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-8950-water-pump-impeller-for-yanmar-2gm-3gm-3hm-marine-diesel-replaces-yanmar-124223-42092","provider":"Good Vibes Marina","version":"1.0","type":"link"}