{"product_id":"6h4-w0078-00-water-pump-impeller-repair-kit-for-yamaha-40-50-hp-sierra-18-3429","title":"6H4-W0078-00 Water Pump Impeller Repair Kit for Yamaha 40\/50 HP Sierra 18-3429","description":"\u003ch2\u003eWater Pump Impeller Repair Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis water pump impeller repair kit is designed for Yamaha 40\/50 HP outboard motors, providing all necessary components to restore cooling performance. It replaces OEM part number 6H4-W0078-00 and Sierra 18-3429.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis water pump impeller repair kit includes the impeller, gaskets, and seals needed to service your Yamaha outboard's water pump. Built for Yamaha 40\/50 HP engines, it matches original part numbers 6H4-W0078-00 and Sierra 18-3429. Keep your engine running cool with this reliable water pump impeller repair kit.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIncludes impeller, gaskets, and seals for a complete repair\u003c\/li\u003e\n\u003cli\u003ePrecision-molded impeller blades for consistent water flow\u003c\/li\u003e\n\u003cli\u003eHigh-quality rubber compound resists wear and heat\u003c\/li\u003e\n\u003cli\u003eDirect replacement for Yamaha 6H4-W0078-00 and Sierra 18-3429\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware included for a straightforward install\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha 40 HP outboard\u003c\/li\u003e\n\u003cli\u003efor Yamaha 50 HP outboard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacing worn impellers during routine maintenance\u003c\/li\u003e\n\u003cli\u003eRestoring water flow in saltwater or freshwater environments\u003c\/li\u003e\n\u003cli\u003eUsed by marine technicians and DIY boaters\u003c\/li\u003e\n\u003cli\u003eIdeal for seasonal tune-ups before summer launch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6H4-W0078-00, Sierra 18-3429\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Horsepower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 HP, 50 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eImpeller, gaskets, seals, hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I know if my water pump impeller needs replacement? \u003cstrong\u003eA:\u003c\/strong\u003e Signs include overheating, reduced water flow from the tell-tale, or visible wear on the impeller blades during inspection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I install this kit myself? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, with basic mechanical skills and a service manual, most boaters can replace the impeller in under an hour.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":45556619509846,"sku":"ZZ3E01506","price":43.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_104baed2-e34d-4d06-803c-fbdc520f016f.jpg?v=1789219287","url":"https:\/\/www.solidspare.com\/products\/6h4-w0078-00-water-pump-impeller-repair-kit-for-yamaha-40-50-hp-sierra-18-3429","provider":"Solid Spare","version":"1.0","type":"link"}