{"product_id":"performance-timing-chain-kit-for-gmc-yukon-2003-2007-4-8l-5-3l-6-0l","title":"Performance Timing Chain Kit for GMC Yukon (2003-2007) 4.8L 5.3L 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Timing Chain Kit for 2003-2007 GMC Yukon (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Timing Chain Kit replaces the stretched factory timing drive on the 2003-2007 GMC Yukon to eliminate timing backlash, maintain accurate valve events, and prevent ignition sync loss under heavy engine loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Yukon Timing Drive Deflection\u003c\/h3\u003e\n\u003cp\u003eHigh-mileage \u003cstrong\u003eGMT800\u003c\/strong\u003e platforms powered by the \u003cstrong\u003eGen III LS-series V8\u003c\/strong\u003e (including the \u003cstrong\u003eLR4\u003c\/strong\u003e, \u003cstrong\u003eLM7\u003c\/strong\u003e, and \u003cstrong\u003eLQ4\u003c\/strong\u003e) frequently suffer from progressive timing chain stretch and sprocket tooth cavitation. The factory silent-link chain is prone to mechanical slack over thousands of thermal cycles and sustained towing stress. This elongation retards camshaft timing, induces erratic spark timing, degrades low-end torque, and risks generating P0016 or P0300 diagnostic trouble codes due to inconsistent camshaft position sensor signals.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle severe duty cycles and elevated valvetrain loads, this replacement timing assembly utilizes high-tensile, pre-stressed steel links engineered to resist elongation under torsional shock loads. Matched with precision-machined, induction-hardened crank and cam sprockets, this assembly guarantees minimal rotational backlash and precise mechanical synchronization. Configured specifically for \u003cstrong\u003e24X reluctor\u003c\/strong\u003e crank profiles, it secures critical valve-to-piston clearance and maintains stable valve events throughout the entire RPM band.\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\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;\"\u003e4.8L, 5.3L, 6.0L LS V8 \/ 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;\"\u003e275-345 hp \/ 290-380 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;\"\u003eEnginetech TS4194A\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 4.8L V8 (LR4, 24X Reluctor)\u003c\/li\u003e\n  \u003cli\u003e2003-2007 GMC Yukon 5.3L V8 (LM7 \/ L59, 24X Reluctor)\u003c\/li\u003e\n  \u003cli\u003e2003-2007 GMC Yukon \/ Yukon Denali 6.0L V8 (LQ4 \/ LQ9, 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?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2003-2007 GMC Yukon equipped with 4.8L, 5.3L, and 6.0L \u003cstrong\u003eGen III LS\u003c\/strong\u003e engines featuring a \u003cstrong\u003e24X reluctor\u003c\/strong\u003e setup. \u003cstrong\u003eThis kit does not fit later 58X reluctor Gen IV configurations or 4-pole camshaft setups.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to verify tooth count and link pitch prior to installation?\u003c\/h4\u003e\n\u003cp\u003eYes, always verify sprocket tooth counts and chain link counts against your removed factory timing set to confirm compatibility with your specific 24X crankshaft snout and single-bolt camshaft gear.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eFull-size GMC utility platforms require unrelenting valvetrain reliability to manage heavy towing payloads and continuous high-load highway driving. Upgrading to a tight-tolerance, hardened-sprocket timing set protects your engine from valvetrain drift, ensuring long-lasting mechanical durability mile after mile.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67545328550136,"sku":"DS-EED7PA45B","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-2003-2007-4-8l-5-3l-6-0l-1.jpg?v=1790721789","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-timing-chain-kit-for-gmc-yukon-2003-2007-4-8l-5-3l-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}