{"product_id":"high-output-alternator-for-chevrolet-silverado-1996-1999-5-7l","title":"High Output Alternator for Chevrolet Silverado (1996-1999) 5.7L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250A Alternator for 1996-1999 Chevrolet Silverado (GMT400)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The high-output 250-amp alternator upgrades the factory charging system on the 1996-1999 Chevrolet Silverado to deliver stable, high-amperage direct current under heavy electrical loads without voltage drop.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Silverado Electrical Bottleneck\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eGMT400\u003c\/strong\u003e trucks equipped with the \u003cstrong\u003eL31 Vortec 5.7L\u003c\/strong\u003e rely on OEM CS130D alternators rated at only 100 to 105 amps. These stock units suffer from severe thermal saturation and diode bridge degradation when subjected to aftermarket winches, snow plows, heavy trailer brake controllers, or auxiliary lighting. Under low idle speeds, the stock stator cannot sustain system voltage, leading to battery starvation, dimming lights, and erratic sensor signals.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered and manufactured in the USA, this heavy-duty 250-amp unit replaces vulnerable factory charging assemblies with premium hand-wound copper stators and high-temperature avalanche rectifiers. Built to withstand prolonged under-hood heat soak, it provides massive amperage reserves across all RPM bands. The housing matches OEM mounting geometry for a straightforward direct-bolt conversion, dropping in place of OEM numbers \u003cstrong\u003e10463651\u003c\/strong\u003e and \u003cstrong\u003eAL8706X\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x 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;\"\u003e1996-1999 Chevrolet Silverado\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 5.7L L31 \/ GMT400\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;\"\u003e255 hp \/ 330 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;\"\u003eAL8706X, 10463651, 10480167, 8206n, 210-5119, 321-1108, 8206-5, 334-2454, 8206, 8206N, 3342454, 3211132, 8206-250\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\u003e1996-1999 Chevrolet Silverado 1500 \/ 2500 (5.7L V8)\u003c\/li\u003e\n  \u003cli\u003e1996-1999 Chevrolet C\/K Series Truck (5.7L 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 GMT400 Silverado?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1996-1999 Chevrolet Silverado equipped with the \u003cstrong\u003eL31 Vortec 5.7L\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade the primary charging wire?\u003c\/h4\u003e\n\u003cp\u003eYes, running a minimum 4-gauge or 0-gauge power cable (\"Big 3 upgrade\") directly to the battery is strongly recommended to handle 250 amps safely.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eWhether towing heavy utility trailers, running commercial plows, or working remote job sites, continuous charging headroom preserves battery longevity and maintains essential vehicle electronics under severe operational demands.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67565580583160,"sku":"DS-EF0Z75T9I","price":431.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-chevrolet-silverado-1996-1999-5-7l-1.jpg?v=1791069226","url":"https:\/\/performancechiptuning.com\/products\/high-output-alternator-for-chevrolet-silverado-1996-1999-5-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}