{"product_id":"mercury-outboard-water-pump-impeller-18-8923-47-161541-47-16154-1-25hp-30hp-efi","title":"MERCURY OUTBOARD WATER PUMP IMPELLER 18-8923 47-161541 47-16154 1 25HP 30HP EFI","description":"\u003ch2\u003eWater Pump Impeller for Mercury\u003c\/h2\u003e\u003cp\u003eThis water pump impeller for Mercury outboard engines replaces OEM cross-reference numbers 18-8923, 47-161541, and 47-16154. It is designed to circulate cooling water through the engine block to prevent overheating during operation. Fits Mercury 25HP and 30HP EFI outboard models.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis water pump impeller for Mercury is a direct replacement part for maintaining proper engine cooling. It ensures the raw water pump delivers consistent flow to protect 25HP and 30HP EFI outboards from heat damage. The impeller is built to match original specifications for reliable performance.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable, flexible rubber composite that resists heat and wear\u003c\/li\u003e\n\u003cli\u003ePrecisely molded to match OEM dimensions for a tight seal\u003c\/li\u003e\n\u003cli\u003eStainless steel insert hub provides corrosion resistance\u003c\/li\u003e\n\u003cli\u003eDesigned for reliable water flow at all engine speeds\u003c\/li\u003e\n\u003cli\u003eReduces risk of engine overheating during extended runs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Mercury 25HP EFI\u003c\/li\u003e\n\u003cli\u003efor Mercury 30HP EFI\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIdeal for routine water pump rebuilds on small Mercury outboards\u003c\/li\u003e\n\u003cli\u003eUsed in freshwater and saltwater boating environments\u003c\/li\u003e\n\u003cli\u003eCommon on fishing boats, skiffs, and light runabouts\u003c\/li\u003e\n\u003cli\u003eReplaces worn impellers to prevent loss of cooling flow\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\u003e18-8923, 47-161541, 47-16154\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorsepower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25HP, 30HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuel Delivery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEFI\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 often should I replace the impeller in my Mercury outboard? \u003cstrong\u003eA:\u003c\/strong\u003e Typically every 100 hours of operation or once a year, whichever comes first. Regular replacement prevents overheating and extends engine life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this impeller fit a Mercury 25HP carbureted model? \u003cstrong\u003eA:\u003c\/strong\u003e This impeller references OEM part numbers for EFI models; verify your engine's serial number and cross-reference before ordering.\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":45556558725206,"sku":"ZZ3E00171","price":23.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_8bcc6d39-1bad-465f-9642-7a7945f68c06.jpg?v=1789208115","url":"https:\/\/www.solidspare.com\/products\/mercury-outboard-water-pump-impeller-18-8923-47-161541-47-16154-1-25hp-30hp-efi","provider":"Solid Spare","version":"1.0","type":"link"}