{"product_id":"performance-water-pump-kit-for-gmc-savana-3500-2003-2006-4-8l-6-0l","title":"Performance Water Pump Kit for GMC Savana 3500 (2003-2006) 4.8L 6.0L","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 2003-2006 GMC Savana 3500 (GMT610)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump Kit restores efficient coolant circulation and accessory drive tensioning on the 2003-2006 GMC Savana 3500 to prevent thermal overload and catastrophic serpentine belt slippage under heavy payload demands.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Savana 3500 Cooling and Drive Belt Vulnerability\u003c\/h3\u003e\n\u003cp\u003eOn high-mileage \u003cstrong\u003eGMT610\u003c\/strong\u003e commercial vans, the factory water pump mechanical shaft seal degrades under sustained thermal cycles, resulting in shaft play, bearing fatigue, and coolant seepage through the weep hole. Concurrently, continuous torsional vibration weakens the internal damping spring of the factory cast tensioner. In fleet applications powered by the \u003cstrong\u003eVortec 6000 LQ4\u003c\/strong\u003e or \u003cstrong\u003eVortec 4800 LR4\u003c\/strong\u003e, this tensioner relaxation induces belt flutter, belt glazing, and charging system dropouts, ultimately starving the iron-block V8 of essential fluid velocity and provoking head gasket failure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit addresses mechanical wear across the entire front-end accessory drive (FEAD). Featuring a high-flow die-cast aluminum water pump housing fitted with reinforced internal ceramic seals and a heavy-duty steel bearing assembly, it matches OEM flow characteristics without cavitation. The assembly includes an integrated thermostat, a balanced steel-pulley belt tensioner assembly engineered to maintain constant dynamic tension, and high-tensile EPDM serpentine belts resistant to heat cracking and elongation. Complete with direct-fit gaskets and O-rings, this kit restores cooling efficiency to factory tolerances, directly replacing failure-prone OEM references such as \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;\"\u003e2003-2006 GMC Savana 3500\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) \/ 6.0L (LQ4) Gen III LS \/ GMT610\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;\"\u003e285-300 hp \/ 295-360 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\u003e2003 GMC Savana 3500 Base \/ SLE \/ Extended Cargo \/ Passenger 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2004 GMC Savana 3500 Base \/ SLE \/ Extended Cargo \/ Passenger 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2005 GMC Savana 3500 Base \/ SLE \/ Extended Cargo \/ Passenger 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2006 GMC Savana 3500 Base \/ SLE \/ Extended Cargo \/ Passenger 4.8L V8\u003c\/li\u003e\n  \u003cli\u003e2006 GMC Savana 3500 Base \/ SLE \/ Extended Cargo \/ Passenger 6.0L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT610 Savana 3500?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2003-2006 GMC Savana 3500 equipped with the Vortec 4.8L LR4 or 6.0L LQ4 engine.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this water pump include the integrated thermostat and mounting gaskets?\u003c\/h4\u003e\n\u003cp\u003eYes, the water pump comes fully assembled with the housing thermostat, replacement gaskets, O-rings, and necessary mounting hardware for installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Commercial Standard\u003c\/h3\u003e\n\u003cp\u003eWhen running maximum commercial payloads or pulling severe trailer weights, cooling system integrity is paramount. This replacement package guarantees the thermal stability, belt grip, and continuous accessory drive reliability required to keep your work vehicle operating without downtime.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67544673747192,"sku":"DS-EH1XDURK5","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-savana-3500-2003-2006-4-8l-6-0l-1.jpg?v=1790708756","url":"https:\/\/performancechiptuning.com\/products\/performance-water-pump-kit-for-gmc-savana-3500-2003-2006-4-8l-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}