{"product_id":"water-pump-marine-circulating-850454r1-for-gm-7-4-8-2l-454-502-sierra-engine","title":"Water Pump Marine Circulating #850454R1 For GM 7.4\/8.2L 454 502 SIERRA Engine","description":"\u003ch2\u003eWater Pump Marine Circulating for GM\u003c\/h2\u003e\u003cp\u003eThis marine circulating water pump is a replacement engine cooling component made for GM 7.4L and 8.2L 454 and 502 engines, cross-referenced to part number 850454R1, moving coolant through the block and heat exchanger to keep operating temperatures steady.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis circulating water pump serves marine and industrial GM 7.4L and 8.2L big block engines, including 454 and 502 configurations, by driving coolant through the cooling system during operation. The 850454R1 reference matches common aftermarket replacements used on marine setups such as inboard and stern drive applications. It is intended for boat owners, mechanics, and engine builders replacing a leaking or worn circulating pump.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCross-references to part number 850454R1 for easy lookup\u003c\/li\u003e\n\u003cli\u003eDesigned for GM 7.4L and 8.2L big block engines\u003c\/li\u003e\n\u003cli\u003eSuits 454 and 502 cubic inch displacement configurations\u003c\/li\u003e\n\u003cli\u003eCirculating design supports marine closed-loop cooling systems\u003c\/li\u003e\n\u003cli\u003eReplaceable unit simplifies service versus rebuilding a worn pump\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor GM 7.4L marine engine\u003c\/li\u003e\n\u003cli\u003efor GM 8.2L marine engine\u003c\/li\u003e\n\u003cli\u003efor GM 454 cubic inch marine engine\u003c\/li\u003e\n\u003cli\u003efor GM 502 cubic inch marine engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInboard marine engine cooling systems\u003c\/li\u003e\n\u003cli\u003eStern drive engine service and repair\u003c\/li\u003e\n\u003cli\u003eHeat exchanger equipped marine setups\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and repower projects\u003c\/li\u003e\n\u003cli\u003eCommercial and recreational boat maintenance\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\u003e850454R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCirculating water pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Fitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor GM 7.4L and 8.2L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e454 and 502 cubic inch\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 Does this pump come with a gasket? \u003cstrong\u003eA:\u003c\/strong\u003e Gasket and mounting hardware contents can vary by supplier batch, so confirm what is included with the listing before purchase. Order a gasket separately if you want a guaranteed seal on install.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit both marine and automotive GM big blocks? \u003cstrong\u003eA:\u003c\/strong\u003e It is listed for marine circulating applications on GM 7.4L and 8.2L engines. Accessory drive and pulley setups differ between marine and automotive versions, so match your application 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":50555379875926,"sku":"ZZ3K00247","price":174.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_f1375abe-98bb-41b4-9470-33aee8d646e0.jpg?v=1790914616","url":"https:\/\/www.solidspare.com\/products\/water-pump-marine-circulating-850454r1-for-gm-7-4-8-2l-454-502-sierra-engine","provider":"Solid Spare","version":"1.0","type":"link"}