{"product_id":"performance-water-pump-kit-for-gmc-yukon-2001-2006-4-8l-5-3l","title":"Performance Water Pump Kit for GMC Yukon (2001-2006) 4.8L 5.3L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Water Pump and Accessory Drive Kit for 2001-2006 GMC Yukon (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump Kit replaces degraded cooling and accessory drive components on the 2001-2006 GMC Yukon to prevent coolant leaks, bearing failure, and belt slip under sustained engine load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Yukon Bearing and Seal Failure Points\u003c\/h3\u003e\n\u003cp\u003eFactory cooling systems on high-mileage \u003cstrong\u003eGMT800\u003c\/strong\u003e platforms suffer from internal mechanical shaft seal degradation, weeping bearings, and embrittled factory gaskets. Over thousands of thermal cycles, the factory water pump impeller shaft develops axial play, causing coolant cavitation, weep-hole discharge, and localized cylinder head hot spots. Simultaneously, stock mechanical belt tensioners lose internal damping force, leading to severe serpentine belt deflection and premature accessory drive slip across the \u003cstrong\u003eVortec 4.8L (LR4)\u003c\/strong\u003e and \u003cstrong\u003e5.3L (LM7)\u003c\/strong\u003e engine platforms.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete service assembly restores closed-loop thermal regulation and belt drive stability. Built with a high-flow cast aluminum housing and a precision-balanced impeller, the pump optimizes coolant velocity across radiator passages during heavy towing. The kit integrates an OEM-spec thermostat assembly, heavy-duty steel tensioner with calibrated spring tension, and wear-resistant EPDM drive belts. Upgraded mounting gaskets and O-rings eliminate interface weeping to resolve chronic leakage associated with factory 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 Yukon\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 4.8L (LR4), 5.3L (LM7\/L59) \/ 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;\"\u003e275-295 hp \/ 290-335 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 Yukon (Base, SLE, SLT) 4.8L Vortec V8 (LR4)\u003c\/li\u003e\n  \u003cli\u003e2001-2006 GMC Yukon (SLE, SLT) 5.3L Vortec V8 (LM7, L59)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT800 Yukon?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2001-2006 GMC Yukon equipped with the \u003cstrong\u003eLR4\u003c\/strong\u003e 4.8L and \u003cstrong\u003eLM7\/L59\u003c\/strong\u003e 5.3L Vortec V8 engines.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this kit include the required replacement thermostat?\u003c\/h4\u003e\n\u003cp\u003eYes, the water pump assembly comes pre-fitted with a direct-replacement thermostat and housing to ensure complete coolant temperature control out of the box.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Towing Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned to maintain critical engine thermal limits under gross vehicle weight ratings, this cooling kit ensures dependable accessory drive performance and steady coolant flow across demanding hauling cycles.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67544664375544,"sku":"DS-EKLZYN0YP","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-yukon-2001-2006-4-8l-5-3l-1.jpg?v=1790708607","url":"https:\/\/performancechiptuning.com\/products\/performance-water-pump-kit-for-gmc-yukon-2001-2006-4-8l-5-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}