{"product_id":"high-output-alternator-for-ford-mustang-shelby-gt500-2007-2008-5-4l","title":"High Output Alternator for Ford Mustang Shelby GT500 (2007-2008) 5.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Amperage 250A Alternator for 2007-2008 Ford Mustang (S197)\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 the 2007-2008 Ford Mustang Shelby GT500 to deliver sustained electrical current and eliminate idle voltage drops under heavy accessory loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Mustang Charging Limitation\u003c\/h3\u003e\n\u003cp\u003eThe factory charging system on the \u003cstrong\u003eS197\u003c\/strong\u003e Shelby GT500 relies on an OEM alternator that frequently falls short when exposed to the extreme underhood operating temperatures of the \u003cstrong\u003eModular 5.4L Supercharged V8\u003c\/strong\u003e. High thermal saturation from the top-mounted supercharger degrades standard internal diodes and brushes over time. Furthermore, the stock unit yields marginal amperage at curb idle, resulting in severe voltage dips when secondary electric fans, upgraded dual fuel pump modules, heat exchanger pumps, or aftermarket audio systems draw high current simultaneously.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit 250-amp replacement incorporates a dense hairpin stator winding design with heavy-gauge rectangular copper wire, drastically increasing copper slot fill density to produce exceptional output at low RPMs. Assembled with premium dual-sealed bearings, an electronically balanced rotor for high-RPM stability, and an upgraded internal bridge rectifier with heavy-duty avalanche diodes, this unit effectively handles continuous high heat cycles without thermal derating. It matches the factory case mounting geometry and OEM wiring plug, directly interchanging with \u003cstrong\u003e7R3Z-10346-A\u003c\/strong\u003e and \u003cstrong\u003e8517\u003c\/strong\u003e without bracket modification.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x High Output 250 Amp 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;\"\u003e2007-2008 Ford Mustang\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;\"\u003eModular 5.4L Supercharged DOHC V8 \/ S197\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;\"\u003e500 hp \/ 480 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;\"\u003e8517, 8517N, 7R3Z-10346-A, BR3T-10300-GA, BR3Z-10346-B, 104210-2980, GL-904\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\u003e2007 Ford Mustang Shelby GT500 5.4L Supercharged V8\u003c\/li\u003e\n  \u003cli\u003e2008 Ford Mustang Shelby GT500 5.4L Supercharged 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 S197 Mustang?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2008 Ford Mustang equipped with the \u003cstrong\u003eModular 5.4L Supercharged V8\u003c\/strong\u003e engine. It is not engineered for 4.0L V6 or 4.6L GT V8 models.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade wiring to utilize this 250-amp alternator?\u003c\/h4\u003e\n\u003cp\u003eWhile this unit functions with the stock harness, upgrading the primary battery charge lead and engine ground cables with a fused 4-gauge or 1\/0-gauge wire is strongly recommended to safely carry full 250-amp loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the harsh vibration and power demands of a high-revving, supercharged Ford powerplant, this heavy-duty charging system guarantees unwavering ignition voltage, stable fuel delivery, and reliable battery charging under hard acceleration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67898679820536,"sku":"DS-EXN22I4OE","price":290.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-ford-mustang-shelby-gt500-2007-2008-5-4l-1.jpg?v=1793325169","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-ford-mustang-shelby-gt500-2007-2008-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}