{"product_id":"high-output-alternator-for-chevrolet-silverado-1999-2000-6-0l","title":"High Output Alternator for Chevrolet Silverado (1999-2000) 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Capacity 350-Amp Alternator for 1999-2000 Chevrolet Silverado (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 350-Amp High Output Alternator replaces the low-output factory charging unit on the 1999-2000 Chevrolet Silverado to deliver consistent system voltage and prevent severe electrical sag under heavy auxiliary loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Silverado Charging System Limitations\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eGMT800\u003c\/strong\u003e trucks equipped with the \u003cstrong\u003eVortec 6000 LQ4\u003c\/strong\u003e shipped with standard 105-amp or 130-amp Delphi units. When running high-draw accessories such as snow plows, heavy-duty winches, auxiliary work lighting, or aftermarket audio systems, OEM charging systems experience substantial voltage drops below 12.8V at idle. This continuous electrical deficit causes severe diode pack heat soak, rotor winding degradation, premature battery discharge, and erratic electronic throttle and sensor behavior under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for high current delivery and severe duty cycles, this 350-amp unit utilizes heavy-gauge hairpin stator windings and a heavy-duty avalanche diode rectifier assembly. The reinforced housing dissipates heat efficiently, preventing thermal breakdown during sustained peak amperage demand. Balanced internal rotors with premium dual-sealed bearings eliminate high-RPM vibration while maintaining solid output even at low engine idle speeds. It mounts directly to factory bracket locations without requiring custom bracket modifications, dropping in place of OEM numbers \u003cstrong\u003e10480388\u003c\/strong\u003e, \u003cstrong\u003e10464438\u003c\/strong\u003e, and \u003cstrong\u003e321-1798\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x 350-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;\"\u003e1999-2000 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 6000 LQ4 \/ GMT800\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;\"\u003e300 hp \/ 360 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;\"\u003e321-1798, 321-2104, 8247, 10480388, 10464438, 8247-350A\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\u003e1999-2000 Chevrolet Silverado 2500 6.0L V8\u003c\/li\u003e\n  \u003cli\u003eFits Silverado models with 6.0L V8 engine configuration\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 Silverado?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1999-2000 Chevrolet Silverado equipped with the \u003cstrong\u003eVortec 6000 LQ4\u003c\/strong\u003e engine. This unit does not fit 4.3L V6 or 8.1L V8 engine options without alternate bracket modifications.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my main battery wiring?\u003c\/h4\u003e\n\u003cp\u003eYes, executing a 0-gauge or 4-gauge \"Big 3\" wiring upgrade (alternator positive, engine ground, and chassis ground) is required to safely handle 350-amp flow without melting stock harness wiring.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt for demanding towing and fleet work, this high-output alternator delivers continuous electrical stability to keep your heavy-duty truck operating reliably through extreme duty cycles and heavy auxiliary power demands.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67565719060728,"sku":"DS-E6OO0KAJE","price":404.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-chevrolet-silverado-1999-2000-6-0l-1.jpg?v=1791072235","url":"https:\/\/performancechiptuning.com\/es\/products\/high-output-alternator-for-chevrolet-silverado-1999-2000-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}