{"product_id":"cummins-qsb-marine-engine-water-pump-impeller-3974456-smx-super-27-sherwood","title":"Cummins QSB Marine Engine Water Pump Impeller 3974456 SMX Super 27 Sherwood","description":"\u003ch2\u003eWater Pump Impeller for Cummins\u003c\/h2\u003e\u003cp\u003eThis water pump impeller for Cummins QSB marine engines replaces OEM part number 3974456 and cross-references SMX Super 27, ensuring reliable coolant flow in the raw water pump.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis water pump impeller is a direct replacement for the original equipment part in Cummins QSB marine engines. It ensures efficient water circulation to prevent overheating and is built for demanding marine environments. The impeller is designed to match the exact specifications of the OEM 3974456 part.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-molded rubber vanes for positive displacement\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant construction for saltwater exposure\u003c\/li\u003e\n\u003cli\u003eExact dimensions match OEM specifications\u003c\/li\u003e\n\u003cli\u003eReinforced hub for secure mounting\u003c\/li\u003e\n\u003cli\u003eResistant to heat and wear for long service life\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Cummins QSB marine engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCirculates raw water through the engine cooling system\u003c\/li\u003e\n\u003cli\u003eUsed in marine diesel raw water pumps\u003c\/li\u003e\n\u003cli\u003eReplacement for worn or damaged impellers in Cummins QSB engines\u003c\/li\u003e\n\u003cli\u003eWorks in both fresh and salt water environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3974456, SMX Super 27\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this impeller compatible with the original Cummins pump? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is designed to replace OEM 3974456 and matches original specifications for a secure fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the recommended replacement interval? \u003cstrong\u003eA:\u003c\/strong\u003e Typically inspect annually and replace if cracked or worn, especially in marine environments where saltwater can accelerate degradation.\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":45556785807446,"sku":"ZZ3E02544","price":89.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_73f8afdc-7208-419f-89d8-62fa06b771cc.jpg?v=1789228655","url":"https:\/\/www.solidspare.com\/products\/cummins-qsb-marine-engine-water-pump-impeller-3974456-smx-super-27-sherwood","provider":"Solid Spare","version":"1.0","type":"link"}