{"product_id":"performance-water-pump-kit-for-gmc-sierra-1500-hd-2001-2006-6-0l","title":"Performance Water Pump Kit for GMC Sierra 1500 HD (2001-2006) 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Performance Water Pump and Drive Kit for 2001-2006 GMC Sierra 1500 HD (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump Kit replaces the failure-prone factory water pump, tensioners, and belts on the 2001-2006 GMC Sierra 1500 HD to restore cooling efficiency and prevent accessory drive belt slip under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Sierra 1500 HD Cooling System Weakness\u003c\/h3\u003e\n\u003cp\u003eUnder continuous towing or high thermal loads, the factory cooling system on the \u003cstrong\u003eGMT800\u003c\/strong\u003e chassis exhibits notable failure points. The OEM mechanical water pump on the \u003cstrong\u003eVortec 6000 LQ4\u003c\/strong\u003e engine frequently experiences shaft seal fatigue, resulting in coolant weeping and bearing failure. Simultaneously, aged spring-damped belt tensioners lose requisite torsional tension over time, leading to micro-slippage across the accessory pulleys, parasitic loss, and elevated coolant operating temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive kit delivers a direct-replacement cast aluminum water pump assembly engineered with heavy-duty internal bearings and improved carbon-ceramic mechanical seals to prevent high-RPM cavitation and leaks. Included high-tensile steel tensioner assemblies and heavy-duty EPDM serpentine belts maintain precise drive alignment and eliminate slip under rapid throttle transitions, replacing worn components associated with OEM part numbers \u003cstrong\u003e12580162\u003c\/strong\u003e and \u003cstrong\u003e12609719\u003c\/strong\u003e.\u003c\/p\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;\"\u003e2001-2006 GMC Sierra 1500 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;\"\u003eVortec 6000 6.0L LQ4 \/ GMT800\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;\"\u003e300 hp \/ 360 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;\"\u003e12580162, 12609719, 12560380, 12562458, 12703898, 19195104\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\u003e2001-2006 GMC Sierra 1500 HD Base 6.0L V8 (LQ4)\u003c\/li\u003e\n  \u003cli\u003e2001-2006 GMC Sierra 1500 HD SLE 6.0L V8 (LQ4)\u003c\/li\u003e\n  \u003cli\u003e2001-2006 GMC Sierra 1500 HD SLT 6.0L V8 (LQ4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT800 Sierra 1500 HD?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2001-2006 GMC Sierra 1500 HD equipped with the Vortec 6000 6.0L LQ4 engine.\u003c\/p\u003e\n\n\u003ch4\u003eIs a complete coolant flush required during this installation?\u003c\/h4\u003e\n\u003cp\u003eYes, draining the system and performing a thorough vacuum or pressure bleed is recommended to prevent localized hot spots and air locks in the cylinder heads.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle severe duty-cycle operation, this complete cooling and accessory drive assembly ensures steady thermal control and mechanical reliability when towing maximum payload capacities with your Sierra 1500 HD.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67544647893240,"sku":"DS-E3SEIU0OI","price":193.95,"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-1500-hd-2001-2006-6-0l-1.jpg?v=1790708483","url":"https:\/\/performancechiptuning.com\/products\/performance-water-pump-kit-for-gmc-sierra-1500-hd-2001-2006-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}