{"product_id":"water-pump-impeller-for-mercruiser-mr-alpha-i-sterndrives-serial-2495186-0d594568-replaces-sierra-18-3017","title":"Engineered Marine Products Water Pump Impeller 47-00001 - Replaces Mercury 18-3017 for MR\/Alpha One Stern Drives","description":"\u003cp\u003eThe Engineered Marine Products 47-00001 is a water pump impeller built as a direct replacement for Mercury Marine part 18-3017, used in MR and Alpha One stern drive units. The impeller is a core wear component of the drive's cooling system, drawing raw water through the lower unit and circulating it to cool the engine; a worn or cracked impeller is one of the most common causes of overheating on I\/O-powered boats, so replacing it at the manufacturer's recommended interval (or any time the pump housing is opened) helps protect the engine from heat damage.\u003c\/p\u003e\u003cp\u003eThis impeller has a machined construction and measures 8 x 5 x 0.5 inches, weighing 0.224 pounds. It is manufactured by Engineered Marine Products, a company that has supplied both OEM and aftermarket marine customers for over 40 years, engineering and sourcing parts to meet original equipment standards at a competitive price. The 47-00001 corresponds to Mercury Marine part number 18-3017 and is intended for MR\/Alpha One stern drive units within the applicable serial number ranges, including units without a flush screw in the gear housing.\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 47-00001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 18-3017\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 840080479446\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.224 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 8 x 5 x 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior\/Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Units:\u003c\/strong\u003e Mercury Mercruiser MR \/ Alpha One stern drives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplicable Serial Number Ranges:\u003c\/strong\u003e 2495186-2763441; 2763442-6854392 (units without a flush screw in the gear housing); 6854393-0D594568\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Mercruiser MR\/Alpha One stern drive units, serial numbers 2495186 through 2763441\u003c\/li\u003e\n\u003cli\u003eMercury Mercruiser MR\/Alpha One units without a flush screw in the gear housing, serial numbers 2763442 through 6854392\u003c\/li\u003e\n\u003cli\u003eMercury Mercruiser MR\/Alpha I units, serial numbers 6854393 through 0D594568\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e18-3017\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Engineered Marine Products 47-00001 impeller fit?\u003c\/strong\u003e The 47-00001 fits Mercury Mercruiser MR and Alpha One stern drive units within specific serial number ranges: 2495186 through 2763441, 2763442 through 6854392 (units without a flush screw in the gear housing), and 6854393 through 0D594568.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 47-00001 a direct replacement for Mercury 18-3017?\u003c\/strong\u003e Yes, the Engineered Marine Products 47-00001 impeller is built to replace Mercury Marine part number 18-3017.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this impeller?\u003c\/strong\u003e The 47-00001 impeller measures 8 x 5 x 0.5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 47-00001 impeller weigh?\u003c\/strong\u003e It weighs 0.224 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my drive uses this impeller?\u003c\/strong\u003e Check your Mercury Mercruiser drive's serial number against the applicable ranges for the 47-00001: 2495186-2763441, 2763442-6854392 (no flush screw in gear housing), or 6854393-0D594568 for MR\/Alpha I units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this impeller fit units without a flush screw in the gear housing?\u003c\/strong\u003e Yes, units without a flush screw in the gear housing that fall in the serial number range 2763442 through 6854392 use the 47-00001 impeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWho makes the 47-00001 impeller?\u003c\/strong\u003e The 47-00001 impeller 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\u003eIs this a genuine Mercury part or an aftermarket replacement?\u003c\/strong\u003e The 47-00001 is an aftermarket impeller manufactured by Engineered Marine Products as a replacement for Mercury part 18-3017, not a Mercury-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 47-00001 impeller have?\u003c\/strong\u003e The impeller has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the 47-00001 impeller?\u003c\/strong\u003e The UPC for the Engineered Marine Products 47-00001 impeller is 840080479446.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 47-00001 fit an Alpha One Generation II drive?\u003c\/strong\u003e No, the 47-00001 (replacing Mercury 18-3017) is listed for MR\/Alpha One units in the 2495186-0D594568 serial number ranges; Alpha One Generation II and Vazer units use a different part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in the box with the 47-00001 impeller?\u003c\/strong\u003e The Engineered Marine Products 47-00001 ships as the impeller itself for the water pump assembly.\u003c\/p\u003e","brand":"EMP","offers":[{"title":"Default Title","offer_id":48991290786011,"sku":"EMP-47-00001","price":19.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/EMP_47-00001_Mercury_MerCruiser_Force_Impeller__52074.1722519311.500.750.jpg?v=1785188511","url":"https:\/\/www.goodvibesmarina.com\/products\/water-pump-impeller-for-mercruiser-mr-alpha-i-sterndrives-serial-2495186-0d594568-replaces-sierra-18-3017","provider":"Good Vibes Marina","version":"1.0","type":"link"}