{"product_id":"sierra-18-3148-water-pump-repair-kit-without-housing-replaces-mercury-46-84277m-46-84277t-fits-mercury-mariner-yamaha-2-stroke-outboards","title":"Sierra 18-3148 Water Pump Repair Kit Without Housing, Replaces Mercury 46-84277M and 46-84277T","description":"\u003cp\u003eThe Sierra 18-3148 Water Pump Repair Kit is a without-housing rebuild kit that restores a worn outboard water pump using the original housing already installed on the engine. Rather than replacing the entire pump body, this kit supplies the internal wear components that fail first: the impeller, wear plate gasket, o-ring, and woodruff key. It directly replaces Mercury Marine 46-84277M and 46-84277T water pump service kits, making it a drop-in solution for engines built around that pump configuration.\u003c\/p\u003e\u003cp\u003eThe kit is built for Yamaha outboard applications in the 2-stroke water pump and impeller category, and the individual components carry their own OEM cross-references: the impeller corresponds to O.E. Number 47-84027M, and the woodruff key corresponds to O.E. Number 28-8192M. Rebuilding with a matched kit like this, rather than sourcing individual parts separately, helps ensure the impeller, gasket, and key are dimensionally matched to seal correctly against the existing housing and maintain proper cooling water flow.\u003c\/p\u003e\u003cp\u003eBecause the housing is not included, this kit is intended for owners whose existing pump housing is still in good condition and only the wear components need replacement. Each component meets or exceeds the quality of the original equipment part it replaces.\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 18-3148\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Pump Repair Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Without Housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Yamaha Outboard, 2-Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Impeller (18-3074), Wear Plate Gasket (18-0768), O-Ring (25-26722), Woodruff Key (18-3305)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpeller OEM Cross-Reference:\u003c\/strong\u003e 47-84027M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWoodruff Key OEM Cross-Reference:\u003c\/strong\u003e 28-8192M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.36 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282234379\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits engines and pump assemblies that use Mercury Marine 46-84277M or 46-84277T water pump repair kits\u003c\/li\u003e\n\u003cli\u003eUsed on Yamaha outboard 2-stroke engines equipped with the compatible pump housing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e46-84277M\u003c\/li\u003e\n\u003cli\u003e46-84277T\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-3148 water pump kit?\u003c\/strong\u003e The kit contains an impeller (18-3074), a wear plate gasket (18-0768), an o-ring (25-26722), and a woodruff key (18-3305) for rebuilding the water pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3148 kit include the pump housing?\u003c\/strong\u003e No, the Sierra 18-3148 is a without-housing kit, meaning it supplies only the internal wear components and reuses the existing pump housing already on the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-3148 replace?\u003c\/strong\u003e It replaces Mercury Marine 46-84277M and 46-84277T water pump repair kits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3148 kit compatible with Yamaha outboards?\u003c\/strong\u003e Yes, this kit is categorized for Yamaha outboard 2-stroke engines that use the corresponding water pump housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM cross-reference for the impeller included in this kit?\u003c\/strong\u003e The impeller included in the Sierra 18-3148 kit cross-references to O.E. Number 47-84027M.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM cross-reference for the woodruff key in the 18-3148 kit?\u003c\/strong\u003e The woodruff key supplied in this kit cross-references to O.E. Number 28-8192M.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3148 water pump kit weigh?\u003c\/strong\u003e It weighs 0.36 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-3148 a genuine part or an aftermarket equivalent?\u003c\/strong\u003e It is a Sierra-manufactured replacement kit engineered to meet or exceed the quality of the original equipment components it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I choose a without-housing kit like 18-3148 instead of a full water pump assembly?\u003c\/strong\u003e A without-housing kit such as the Sierra 18-3148 is the right choice when the existing pump housing is still in good condition and only the internal wear parts (impeller, gasket, o-ring, key) need replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3148 kit?\u003c\/strong\u003e The UPC for the Sierra 18-3148 water pump repair kit is 808282234379.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy the impeller from the 18-3148 kit separately?\u003c\/strong\u003e Within this kit the impeller is identified as part 18-3074, with OEM cross-reference 47-84027M.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many of each part are in the Sierra 18-3148 kit?\u003c\/strong\u003e The kit ships as one complete set: one impeller, one wear plate gasket, one o-ring, and one woodruff key.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988140732635,"sku":"SIE-18-3148","price":42.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3148_lg__60682.1558123501.500.750.jpg?v=1785188057","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3148-water-pump-repair-kit-without-housing-replaces-mercury-46-84277m-46-84277t-fits-mercury-mariner-yamaha-2-stroke-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}