{"product_id":"performance-drive-belt-tensioner-kit-for-gmc-yukon-xl-1500-2000-2002-5-3l","title":"Performance Drive Belt Tensioner Kit for GMC Yukon XL 1500 (2000-2002) 5.3L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Accessory Drive Belt Tensioner Kit for 2000-2002 GMC Yukon XL 1500 (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Drive Belt Tensioner Kit replaces the worn factory accessory drive components on the 2000-2002 GMC Yukon XL 1500 to eliminate belt slip, maintain critical alternator charging under load, and restore smooth accessory drive operation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Yukon XL 1500 Tensioner Fatigue \u0026amp; Pulley Bearing Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory belt tensioners on the \u003cstrong\u003eGMT800\u003c\/strong\u003e platform utilize an internal torsional spring dampener that fatigues after repeated thermal cycles within the engine bay. Over time, loss of calibrated spring tension causes belt flutter and micro-slipping across the accessory drive under sudden throttle transients. Furthermore, factory sealed idler bearings dry out from prolonged heat exposure, leading to pulley misalignment, high-pitched squeal, parasitic drag, and catastrophic belt shredding that leaves the \u003cstrong\u003eLM7\u003c\/strong\u003e Vortec V8 without water pump or alternator operation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit upgrades the front accessory drive system to handle sustained mechanical load. Featuring a high-tensile \u003cstrong\u003e6PK2360\u003c\/strong\u003e serpentine belt constructed with heat-resistant synthetic EPDM rubber, it resists rib cracking and rib shear under severe thermal stress. The included heavy-duty \u003cstrong\u003e38158\u003c\/strong\u003e tensioner assembly incorporates a calibrated internal spring to maintain precise tension under high-draw electrical loads, while the steel \u003cstrong\u003e38001\u003c\/strong\u003e idler pulley features premium, sealed high-RPM ball bearings to eliminate runout and dampen high-frequency harmonic vibration across the crank pulley and 130A alternator interface.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Serpentine Belt (Part # 6PK2360)\u003c\/li\u003e\n  \u003cli\u003e1 Idler Pulley (Part # 38001)\u003c\/li\u003e\n  \u003cli\u003e1 Belt Tensioner Assembly (Part # 38158)\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;\"\u003e2000-2002 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;\"\u003eVortec 5.3L LM7 \/ 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 hp \/ 325 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;\"\u003e6PK2360, 38001, 38158\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\u003e2000 GMC Yukon XL 1500 5.3L V8 (130 Amp Alternator Option)\u003c\/li\u003e\n  \u003cli\u003e2001 GMC Yukon XL 1500 5.3L V8 (130 Amp Alternator Option)\u003c\/li\u003e\n  \u003cli\u003e2002 GMC Yukon XL 1500 5.3L V8 (130 Amp Alternator Option)\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 2000-2002 GMC Yukon XL 1500 equipped with the \u003cstrong\u003eLM7\u003c\/strong\u003e 5.3L V8 engine. \u003cstrong\u003eNote: This kit is strictly engineered for models equipped with the factory 130-amp alternator option; it does not fit models with the standard 105-amp alternator due to differences in belt routing length.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eHow do I confirm if my Yukon XL has the 130-amp alternator?\u003c\/h4\u003e\n\u003cp\u003eCheck the Service Parts Identification (RPO) sticker in your glovebox for code KG8 (130A alternator) or inspect the stamped casing amperage on your existing alternator before installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Towing Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet the relentless demands of full-size towing, payload hauling, and extreme highway mileage, this front accessory drive kit delivers the continuous mechanical reliability your GMT800 chassis requires under heavy load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67546992836856,"sku":"DS-E77WEKRL0","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-drive-belt-tensioner-kit-for-gmc-yukon-xl-1500-2000-2002-5-3l-1.jpg?v=1790739662","url":"https:\/\/performancechiptuning.com\/products\/performance-drive-belt-tensioner-kit-for-gmc-yukon-xl-1500-2000-2002-5-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}