{"product_id":"performance-timing-chain-kit-for-gmc-yukon-xl-1500-2003-2007-5-3l-6-0l","title":"Performance Timing Chain Kit for GMC Yukon XL 1500 (2003-2007) 5.3L 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Strength Performance Timing Chain Kit for 2003-2007 GMC Yukon XL 1500 (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Timing Chain Kit replaces the loose factory timing assembly on the 2003-2007 GMC Yukon XL 1500 to restore critical valve timing accuracy and eradicate timing scatter under heavy payload demands.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Yukon XL 1500 Chain Stretch and Timing Drift\u003c\/h3\u003e\n\u003cp\u003eOver extended mileage and severe duty cycles, the factory single-roller timing chain on the \u003cstrong\u003eGMT800\u003c\/strong\u003e platform undergoes mechanical elongation. Combined with wear on the OEM powdered-metal sprockets, this chain stretch introduces unwanted harmonic slop into the valvetrain. In Gen III \u003cstrong\u003eVortec 5300\u003c\/strong\u003e and \u003cstrong\u003eVortec 6000\u003c\/strong\u003e engines, excessive slack creates camshaft phase drift, ignition jitter, decreased volumetric efficiency, and erratic sensor feedback to the factory ECM (frequently triggering misfire DTCs under load).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit timing kit resolves valvetrain instability by combining a high-tensile, pre-stretched link chain with induction-hardened, precision-machined sprockets. Engineered specifically for \u003cstrong\u003e24X reluctor\u003c\/strong\u003e \u003cstrong\u003eLS-series\u003c\/strong\u003e configurations, the crank and cam gears resist tooth deformation under aggressive valve spring pressures and continuous torque transients. The assembly maintains strict mechanical tolerances, eliminating harmonic whip and securing precise valve-to-piston synchronization across the entire powerband.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Timing Chain\u003c\/li\u003e\n  \u003cli\u003e1 Camshaft Sprocket\u003c\/li\u003e\n  \u003cli\u003e1 Crankshaft Sprocket\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;\"\u003e2003-2007 GMC Yukon XL 1500\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 (LM7\/L59) \/ 6.0L (LQ4) Gen III LS \/ 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;\"\u003e285–335 hp \/ 325–380 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;\"\u003eTS4194A\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\u003e2003-2007 GMC Yukon XL 1500 5.3L V8 (24X reluctor)\u003c\/li\u003e\n  \u003cli\u003e2003-2007 GMC Yukon XL 1500 6.0L V8 (24X reluctor)\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 GMT800 Yukon XL 1500?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2003-2007 GMC Yukon XL 1500 equipped with the \u003cstrong\u003e24X reluctor LS-series\u003c\/strong\u003e 5.3L or 6.0L engine. \u003cstrong\u003eThis kit will not fit 58X reluctor Gen IV engine setups or 1-bolt\/4X cam gear configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to degree the camshaft when installing this kit?\u003c\/h4\u003e\n\u003cp\u003eNo, this timing set is pre-indexed for factory-alignment marks, enabling straight zero-advance installation without degreeing equipment.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Towing Caliber\u003c\/h3\u003e\n\u003cp\u003eFull-size sport utility platforms demand rock-solid engine reliability under maximum payload and towing stresses. This timing set delivers the mechanical endurance required to keep your \u003cstrong\u003eGMT800\u003c\/strong\u003e performing predictably mile after heavy-duty mile.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67545330319608,"sku":"DS-EH2ISVKZC","price":81.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-timing-chain-kit-for-gmc-yukon-xl-1500-2003-2007-5-3l-6-0l-1.jpg?v=1790721818","url":"https:\/\/performancechiptuning.com\/products\/performance-timing-chain-kit-for-gmc-yukon-xl-1500-2003-2007-5-3l-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}