{"product_id":"performance-water-pump-kit-for-gmc-sierra-2500-hd-3500-hd-2007-2019-6-0l","title":"Performance Water Pump Kit for GMC Sierra 2500 HD,3500 HD (2007-2019) 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Flow Water Pump Kit for 2007-2019 GMC Sierra 2500 HD, 3500 HD (GMT900 \/ K2XX)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump Kit replaces the failure-prone factory coolant pump and thermostat assembly on 2007-2019 GMC Sierra 2500 HD and 3500 HD trucks to maintain stable engine operating temperatures and eliminate coolant cavitation under sustained payload duty.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Sierra 2500 HD, 3500 HD Cooling System Vulnerability\u003c\/h3\u003e\n\u003cp\u003eThe factory cooling system on the \u003cstrong\u003eVortec 6.0L\u003c\/strong\u003e (\u003cstrong\u003eLY6 \/ L96\u003c\/strong\u003e) encounters high thermal stress during prolonged trailering and severe duty cycles. The original mechanical shaft seal deteriorates over thermal cycles, leading to weeping from the weep hole, bearing play, and eventual impeller slippage. Compounding this, the factory thermostat housing often suffers from galvanic corrosion or housing warping, causing unmetered coolant bypass and localized overheating across the aluminum cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit water pump assembly features a precision-cast aluminum housing with reinforced internal fluid passages designed to reduce coolant flow restriction. Equipped with an upgraded, heat-treated unitized bearing assembly and an anti-cavitation stamped impeller, it ensures consistent coolant circulation across the block deck under continuous high-RPM towing. An integrated OEM-spec thermostat assembly and multi-layer rectangular block gaskets are supplied to ensure zero-leak sealing against the engine front cover.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Engine Water Pump\u003c\/li\u003e\n  \u003cli\u003e1 Thermostat Housing\u003c\/li\u003e\n  \u003cli\u003e1 Thermostat\u003c\/li\u003e\n  \u003cli\u003e2 Rectangular Gaskets\u003c\/li\u003e\n  \u003cli\u003e1 Oval Gasket\u003c\/li\u003e\n  \u003cli\u003e2 Mounting Bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2007-2019 GMC Sierra 2500 HD, 3500 HD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e6.0L V8 (LY6\/L96 Vortec) \/ GMT900, K2XX\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e360 hp \/ 380 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e12681417, 12600767, AW6009\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007-2019 GMC Sierra 2500 HD 6.0L V8 Gas\u003c\/li\u003e\n  \u003cli\u003e2007-2019 GMC Sierra 3500 HD 6.0L V8 Gas\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT900 and K2XX Sierra 2500 HD, 3500 HD?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2019 GMC Sierra 2500 HD and 3500 HD equipped with the \u003cstrong\u003e6.0L Vortec V8\u003c\/strong\u003e. \u003cstrong\u003eVerify your engine displacement prior to purchase; this unit does not fit 6.6L Duramax diesel applications or 8.1L platforms.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eWhat torque specification should be applied to the mounting bolts?\u003c\/h4\u003e\n\u003cp\u003eTorque the water pump bolts to 11 lb-ft on the first pass and 22 lb-ft on the final pass in a cross pattern to prevent gasket distortion.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle sustained cooling system pressures, this pump delivers thermal reliability that keeps commercial fleet and heavy towing setups operating within ideal temperature limits under maximum payload.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67545110315256,"sku":"DS-E010QYS5N","price":108.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-water-pump-kit-for-gmc-sierra-2500-hd-3500-hd-2007-2019-6-0l-1.jpg?v=1790716938","url":"https:\/\/performancechiptuning.com\/products\/performance-water-pump-kit-for-gmc-sierra-2500-hd-3500-hd-2007-2019-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}