{"product_id":"mercruiser-bravo-water-pump-impeller-18-3087-fits-bravo-inboards-with-plastic-pump-body-mpn-47-03908","title":"Engineered Marine Products Water Pump Impeller 47-03908 for Mercruiser Cooling Systems","description":"\u003cp\u003eThe Engineered Marine Products impeller, part number 47-03908, is a water pump impeller built for Mercruiser cooling system applications. Engineered Marine Products has supplied both OEM and marine aftermarket channels for over 40 years, engineering and sourcing components to deliver consistent quality at a competitive price point. This impeller carries a machined exterior finish and is sized to fit within standard Mercruiser water pump housings, making it a straightforward replacement part for boat owners and marine technicians performing cooling system maintenance.\u003c\/p\u003e\u003cp\u003eAt 3 x 3 x 2 inches and 0.484 pounds, this impeller is compact and easy to handle during a water pump service. Impellers are a wear item in any raw-water cooling system; as the rotating component inside the water pump housing, the impeller circulates raw water through the engine to keep operating temperatures in check. Replacing a worn or cracked impeller on schedule helps prevent overheating and protects the engine's cooling passages from restricted water flow.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Engineered Marine Products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 47-03908\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Pump Impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.484 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 3 x 3 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 840080443416\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercruiser cooling system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is part number 47-03908?\u003c\/strong\u003e Part number 47-03908 is an Engineered Marine Products water pump impeller made for Mercruiser cooling system applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this impeller?\u003c\/strong\u003e The 47-03908 impeller from Engineered Marine Products measures 3 x 3 x 2 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 47-03908 impeller weigh?\u003c\/strong\u003e This Engineered Marine Products impeller weighs 0.484 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is assigned to this impeller?\u003c\/strong\u003e The Engineered Marine Products impeller 47-03908 carries UPC 840080443416.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 47-03908 impeller have?\u003c\/strong\u003e It has a machined exterior finish, as specified for this Engineered Marine Products impeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 47-03908 a genuine Engineered Marine Products part?\u003c\/strong\u003e Yes, 47-03908 is manufactured by Engineered Marine Products, a company that has supplied OEM and marine aftermarket parts for over 40 years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat cooling system is this impeller designed for?\u003c\/strong\u003e This impeller, part number 47-03908, is designed for use in a Mercruiser cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 47-03908 impeller come with gaskets or a housing?\u003c\/strong\u003e No, this listing is for the impeller itself, part number 47-03908; it does not include a housing, face plate, or gasket set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat role does an impeller like 47-03908 play in a marine cooling system?\u003c\/strong\u003e The impeller is the rotating component inside a water pump housing that circulates raw water through the engine; part number 47-03908 fills that role in a Mercruiser cooling system.\u003c\/p\u003e","brand":"EMP","offers":[{"title":"Default Title","offer_id":48991289999579,"sku":"EMP-47-03908","price":23.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/EMP_47-03908_MerCruiser_Impeller__46914.1722512788.500.750.jpg?v=1785189140","url":"https:\/\/www.goodvibesmarina.com\/products\/mercruiser-bravo-water-pump-impeller-18-3087-fits-bravo-inboards-with-plastic-pump-body-mpn-47-03908","provider":"Good Vibes Marina","version":"1.0","type":"link"}