{"product_id":"high-output-alternator-for-pontiac-g8-2008-2009-3-6l","title":"High Output Alternator for Pontiac G8 (2008-2009) 3.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250A Alternator for 2008-2009 Pontiac G8 (GM Zeta)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 250-amp high output alternator replaces the standard factory charging unit on the 2008-2009 Pontiac G8 3.6L to deliver sustained electrical amperage under heavy accessory loads and prevent idle voltage drops.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Pontiac G8 Charging Limitation\u003c\/h3\u003e\n\u003cp\u003eThe factory charging system on the \u003cstrong\u003eGM Zeta\u003c\/strong\u003e platform Pontiac G8 equipped with the 3.6L \u003cstrong\u003eLY7\u003c\/strong\u003e High Feature V6 relies on a standard-output alternator engineered solely for baseline electrical demand. When aftermarket accessories—such as multi-channel amplifiers, high-draw cooling fans, or auxiliary lighting—are added, the stock unit suffers from severe thermal saturation. At idle speeds, factory current output drops dramatically, resulting in voltage dips below 12.5 volts, sluggish starter engagement, dimming instrument clusters, and accelerated battery degradation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement 250-amp alternator overcomes OEM charging deficits by utilizing heavy-gauge, high-conductivity copper stator windings paired with a precision-balanced rotor. Built inside a factory-spec cast aluminum housing, it features premium sealed bearings to reduce mechanical drag and an internal solid-state voltage regulator calibrated to maintain 13.5V to 14.5V across the entire operating RPM band. Every unit is bench tested under load to ensure reliable current delivery directly through the factory mounting points and harness without requiring bracket modifications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x 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;\"\u003e2008-2009 Pontiac G8\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;\"\u003e3.6L LY7 V6 \/ GM Zeta\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;\"\u003e256 hp \/ 248 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;\"\u003e92173959, 11420, A11420, A3TG4091, 11420N, 11420R\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\u003e2008 Pontiac G8 Base Sedan 3.6L V6\u003c\/li\u003e\n  \u003cli\u003e2009 Pontiac G8 Base Sedan 3.6L V6\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 GM Zeta G8?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2008-2009 Pontiac G8 equipped with the \u003cstrong\u003eLY7\u003c\/strong\u003e 3.6L V6 engine; it does not fit the 6.0L L76 (GT) or 6.2L LS3 (GXP) V8 models.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my wiring for this 250A alternator?\u003c\/h4\u003e\n\u003cp\u003eWhile this alternator utilizes the factory plug and harness, upgrading the main B+ charge lead and chassis grounds to 1\/0 AWG wire is strongly recommended to utilize the full 250-amp output safely.\u003c\/p\u003e\n\n\u003ch3\u003eThe Pontiac Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to deliver clean, uncompromised electrical stability under intense operational loads, this high-output unit ensures your rear-wheel-drive sedan maintains peak ignition voltage and power delivery on the street and track.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67898768457976,"sku":"DS-E4MZW0L0D","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-g8-2008-2009-3-6l-1.jpg?v=1793327508","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-pontiac-g8-2008-2009-3-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}