{"product_id":"high-output-alternator-for-pontiac-gto-2005-2006-6-0l","title":"High Output Alternator for Pontiac GTO (2005-2006) 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty High Output 250-Amp Alternator for 2005-2006 Pontiac GTO (V2)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The High Output 250-Amp Alternator replaces the factory charging unit on the 2005-2006 GTO to deliver continuous, high-amperage electrical current and prevent system voltage drops under peak load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Pontiac GTO Charging System Limitations\u003c\/h3\u003e\n\u003cp\u003eThe factory charging system on the \u003cstrong\u003eV2\u003c\/strong\u003e chassis struggles to maintain stable voltage under elevated thermal conditions and modern electrical demands. Packed tightly against the exhaust manifold on the \u003cstrong\u003eLS2\u003c\/strong\u003e engine, the stock 140-amp unit suffers from severe heat soak. Over time, high underhood operating temperatures degrade factory internal diodes and induce thermal throttling. When running upgraded dual cooling fans, aftermarket fuel systems, high-draw ignition components, or auxiliary audio amplifiers, the factory alternator experiences severe voltage drops at idle, often dipping below 12.8 volts. This starving of the electrical bus compromises ignition coil dwell times, causes erratic sensor readings, and drains the battery prematurely.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eManufactured in the USA, this direct-replacement 250-amp alternator resolves charging deficiencies through heavy-duty copper stator windings and high-efficiency rectifier assemblies. Engineered to fit factory mounting brackets, it utilizes premium avalanche diodes and heavy-gauge internal bridge rectifiers designed to withstand persistent thermal stress. Operating efficiency is maintained across low-RPM idle scenarios and high-RPM power bands alike, supplying ample charging capacity for demanding secondary circuits. This unit replaces factory part numbers \u003cstrong\u003eAL8642X\u003c\/strong\u003e, \u003cstrong\u003e92211821\u003c\/strong\u003e, and \u003cstrong\u003eA3TG1581\u003c\/strong\u003e without requiring bracket alterations.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 250-Amp High Output Alternator\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;\"\u003e2005-2006 Pontiac GTO\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;\"\u003eLS2 \/ V2\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;\"\u003e400 hp \/ 400 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;\"\u003eAL8642X, 225036171, 92211821, A3TG1581, 15439, 11097N, 110979R, 90-27-3341, 11097\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 Pontiac GTO Base 6.0L V8 (LS2)\u003c\/li\u003e\n  \u003cli\u003e2006 Pontiac GTO Base 6.0L V8 (LS2)\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 V2 GTO?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2006 Pontiac GTO equipped with the \u003cstrong\u003eLS2\u003c\/strong\u003e engine. \u003cstrong\u003eThis unit does not fit 2004 Pontiac GTO models equipped with the 5.7L LS1 engine due to differing pulley offsets and regulator wiring configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade the primary charging cable?\u003c\/h4\u003e\n\u003cp\u003eA \"Big 3\" electrical upgrade using a fused, minimum 4-gauge power and ground cable is required to safely transfer this unit's 250-amp output without overtaxing factory wiring.\u003c\/p\u003e\n\n\u003ch3\u003eThe Pontiac Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eModern muscle platforms demand robust electrical stability to deliver uninterrupted spark energy, high-flow fuel delivery, and uncompromised wide-open throttle power under extreme track and street conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67566178861304,"sku":"DS-E1CMOOCXT","price":337.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-pontiac-gto-2005-2006-6-0l-1.jpg?v=1791084166","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-pontiac-gto-2005-2006-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}