{"product_id":"jkorkm-water-pump-assembly-with-thermostat-for-chevy-gmc-4-8l-5-3l-6-0l-direct-fit-gaskets-included","title":"JkorkM Water Pump Assembly with Thermostat for Chevy GMC 4.8L\/5.3L\/6.0L — Direct-Fit, Gaskets Included","description":"\u003cp\u003e\u003cstrong\u003eThe JkorkM AW5104 is a complete water pump assembly with a pre-installed thermostat designed to restore reliable engine cooling for Chevy, GMC, and compatible GM-family V8 engines (4.8L, 5.3L, 6.0L).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis ready-to-install unit replaces multiple OEM numbers and bundles gaskets and gloves so you get a direct-fit repair that reduces downtime. Built for late‑1990s to mid‑2000s GM trucks, SUVs and utility vehicles, the assembly pairs a precision pump housing with a temperature-sensitive thermostat to help maintain proper coolant flow under normal driving conditions.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this water pump assembly improve engine cooling compared to replacing parts separately?\u003c\/h3\u003e\n\n\u003cp\u003eInstalling the pump and thermostat together ensures mating surfaces are sealed correctly and the thermostat opens at the intended temperature. That coordinated replacement minimizes leaks, avoids mismatched wear, and reduces the chance of redoing labor later.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePre-installed thermostat inside the pump housing for correct alignment and sealing.\u003c\/li\u003e\n  \u003cli\u003eIncluded gaskets ensure a leak-resistant installation.\u003c\/li\u003e\n  \u003cli\u003eReplaces multiple OEM part numbers for straightforward compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my vehicle and which OEM numbers does it replace?\u003c\/h3\u003e\n\n\u003cp\u003eThe AW5104 assembly is engineered to replace many GM OEM references and fit a wide range of models from Chevy, GMC, Buick, Cadillac, Hummer, Isuzu and Saab from roughly 1999–2006. Verify fitment by cross-referencing the listed OEM numbers or your vehicle’s year and engine size (4.8L, 5.3L, 6.0L).\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with Chevy: Silverado, Tahoe, Suburban, Express, TrailBlazer, SSR, and certain W-series trucks.\u003c\/li\u003e\n  \u003cli\u003eCompatible with GMC, Buick, Cadillac, Hummer, Isuzu, Saab model ranges listed in product details.\u003c\/li\u003e\n  \u003cli\u003eReplaces OEM numbers including AW5104, AW5087, 12456113, 12458935, 12569519 and many others.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the package and what should I expect during installation?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit ships as a fully assembled water pump with the thermostat already installed in the housing, plus new gaskets and installation gloves. Because the thermostat is pre-mounted, installation is simplified: you fit the assembly, torque the recommended bolts, and refill the cooling system per manufacturer specs.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOne AW6009 water pump assembly with thermostat pre-installed.\u003c\/li\u003e\n  \u003cli\u003eGaskets included to replace old seals and prevent leaks.\u003c\/li\u003e\n  \u003cli\u003eInstallation gloves supplied for cleaner, safer handling during service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will this part affect long-term cooling reliability?\u003c\/h3\u003e\n\n\u003cp\u003eReplacing both the pump and thermostat at once reduces the odds of a thermostat-related failure shortly after pump replacement and helps the cooling system operate as intended. The matched components and fresh seals support consistent coolant circulation and pressure control under varied driving loads.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThermostat regulates flow based on coolant temperature for consistent operation.\u003c\/li\u003e\n  \u003cli\u003eNew bearings and impeller restore pump efficiency versus worn originals.\u003c\/li\u003e\n  \u003cli\u003eFresh gaskets minimize leak risk that can lead to overheating or loss of coolant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The JkorkM AW5104 water pump with thermostat is aimed at do-it-yourself mechanics, professional technicians and fleet maintenance teams working on late‑1990s to mid‑2000s GM V8 trucks and SUVs (4.8L, 5.3L, 6.0L) who want a complete, OEM-replacing assembly that shortens repair time and reduces the chance of follow-up failures. If you need a direct replacement that comes ready to install with necessary seals and a mounted thermostat, this kit is designed to meet those needs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this AW5104 unit include the thermostat?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the thermostat is pre-installed inside the water pump housing and not packaged separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this pump for a 2004 Silverado 1500 5.3L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this assembly lists compatibility with 2004 Silverado 1500 models with the specified 4.8L, 5.3L, or 6.0L engines; always double-check OEM cross-references.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"JkorkM","offers":[{"title":"Default Title","offer_id":55170579726679,"sku":"B0FJQKZJ3M","price":141.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/jkorkm-aw5104-front-assembly.jpg?v=1790431268","url":"https:\/\/britishgarage.co.uk\/products\/jkorkm-water-pump-assembly-with-thermostat-for-chevy-gmc-4-8l-5-3l-6-0l-direct-fit-gaskets-included","provider":"British Garage","version":"1.0","type":"link"}