{"product_id":"high-output-alternator-for-gmc-yukon-2005-2006-6-0l-8-1l","title":"High Output Alternator for GMC Yukon (2005-2006) 6.0L 8.1L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Amp Heavy-Duty 250A Alternator for 2005-2006 GMC Yukon (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 250 Amp High Output Alternator replaces the factory charging unit on 2005-2006 GMC Yukon models to provide stable system voltage and prevent electrical drop under high-draw commercial and aftermarket accessories.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Yukon Electrical Output Limitation\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eGMT800\u003c\/strong\u003e charging systems typically rely on 105-amp or 145-amp units (such as original Delco platforms) that struggle under modern continuous loads. When powering high-draw electrical equipment, aftermarket winches, snowplows, auxiliary lighting, or heavy trailer brake harnesses, stock alternators suffer severe voltage sag at idle. Sustained high-current demand overheats the OEM bridge rectifier and stator windings, precipitating premature diode failure, battery drain, and false electrical fault codes across engine sensors.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to resolve charging deficits, this high-output unit supplies \u003cstrong\u003e250 Amps\u003c\/strong\u003e of sustained capacity. Built in the USA using precision-wound high-temperature copper stators and a reinforced rotor assembly, it integrates an upgraded heavy-duty rectifier with premium avalanche diodes to resist extreme underhood thermal soak. This design maintains steady system voltage above 14.2V even under heavy electrical load, preserving battery life and ensuring seamless operation for auxiliary commercial or towing accessories.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Alternator (250 Amp)\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: solid font-size: min-width:\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;\"\u003e2005-2006 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;\"\u003e\n\u003cstrong\u003eVortec 6000 (LQ4\/LQ9)\u003c\/strong\u003e, \u003cstrong\u003eVortec 8100 (L18)\u003c\/strong\u003e \/ \u003cstrong\u003eGMT800\u003c\/strong\u003e\n\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;\"\u003e335 hp \/ 380 lb-ft (6.0L), 325 hp \/ 447 lb-ft (8.1L)\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;\"\u003e\n\u003cstrong\u003e10464405\u003c\/strong\u003e, \u003cstrong\u003e10464443\u003c\/strong\u003e, \u003cstrong\u003e10464453\u003c\/strong\u003e, \u003cstrong\u003e10464456\u003c\/strong\u003e, \u003cstrong\u003e10464476\u003c\/strong\u003e, \u003cstrong\u003e15263859\u003c\/strong\u003e, \u003cstrong\u003e19151921\u003c\/strong\u003e, \u003cstrong\u003e19244751\u003c\/strong\u003e, \u003cstrong\u003e8104644760\u003c\/strong\u003e, \u003cstrong\u003e8152260\u003c\/strong\u003e, \u003cstrong\u003e8292-250A\u003c\/strong\u003e\n\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\u003e2005-2006 GMC Yukon 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2005-2006 GMC Yukon 8.1L V8\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 bolt-in fit for the 2005-2006 GMC Yukon equipped with the \u003cstrong\u003eVortec 6000 (6.0L)\u003c\/strong\u003e and \u003cstrong\u003eVortec 8100 (8.1L)\u003c\/strong\u003e engines.\u003c\/p\u003e\n\n\u003ch4\u003eShould I upgrade my charging wiring with this unit?\u003c\/h4\u003e\n\u003cp\u003eTo safely handle the full 250-amp output and minimize resistance, installing an upgraded \"Big 3\" 1\/0 AWG charging lead and ground wiring is strongly recommended.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for rigorous towing, payload distribution, and heavy trailering duties, this alternator ensures continuous electrical reliability under severe operating conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67565638811896,"sku":"DS-ESFSQHVRF","price":249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-gmc-yukon-2005-2006-6-0l-8-1l-1.jpg?v=1791070870","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-gmc-yukon-2005-2006-6-0l-8-1l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}