{"product_id":"performance-water-pump-kit-for-gmc-canyon-2009-2012-5-3l","title":"Performance Water Pump Kit for GMC Canyon (2009-2012) 5.3L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Water Pump and Thermostat Kit for 2009-2012 GMC Canyon (GMT355)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump Kit replaces the failure-prone factory cooling assembly on the 2009-2012 GMC Canyon to maintain consistent coolant circulation and prevent thermal runaway under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Canyon Thermal Shortcomings\u003c\/h3\u003e\n\u003cp\u003eIn the tightly packaged engine bay of the \u003cstrong\u003eGMT355\u003c\/strong\u003e chassis equipped with the 5.3L \u003cstrong\u003eLH8 \/ LH9\u003c\/strong\u003e V8, thermal stress is constant. Factory water pumps frequently develop bearing play and coolant weepage past the internal mechanical shaft seal. Furthermore, the stamped factory impeller can suffer from cavitation at higher RPMs and reduced volumetric efficiency at low idle speeds, leading to localized heat soak within the aluminum cylinder heads and premature failure of the integrated thermostat unit.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-durability cooling, this replacement assembly utilizes a high-flow cast aluminum housing with precision CNC-machined gasket sealing surfaces. The optimized internal impeller design mitigates cavitation, ensuring uniform coolant velocity across the block and cylinder heads even during demanding towing scenarios. Accompanied by high-integrity elastomeric gaskets, direct-replacement mounting hardware, and an integrated calibrated thermostat, this kit directly restores proper hydrodynamic pressure and replaces OEM references \u003cstrong\u003e12681417\u003c\/strong\u003e, \u003cstrong\u003e12600767\u003c\/strong\u003e, and \u003cstrong\u003eAW6009\u003c\/strong\u003e.\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;\"\u003e2009-2012 GMC Canyon\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;\"\u003e5.3L LH8\/LH9 V8 \/ GMT355\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 \/ 320 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\u003e2009-2012 GMC Canyon 5.3L V8 (Extended Cab, Crew Cab)\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 GMT355 Canyon?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2009-2012 GMC Canyon equipped with the \u003cstrong\u003eLH8 \/ LH9\u003c\/strong\u003e 5.3L engine. \u003cstrong\u003eThis kit does not fit models equipped with the 2.9L inline-4 (LLV) or 3.7L inline-5 (LLR) engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to bleed the system after installation?\u003c\/h4\u003e\n\u003cp\u003eYes, thorough vacuum-filling or a complete manual coolant burping procedure is required after installation to eliminate trapped air pockets and ensure proper thermostat operation.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Truck Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the harsh demands of heavy hauling and payload transport, this water pump assembly delivers the cooling reliability necessary to preserve your drivetrain under maximum torque.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67545116705016,"sku":"DS-EY89PYARD","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-canyon-2009-2012-5-3l-1.jpg?v=1790717128","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-water-pump-kit-for-gmc-canyon-2009-2012-5-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}