{"product_id":"high-output-alternator-for-buick-century-1999-2001-3-1l","title":"High Output Alternator for Buick Century (1999-2001) 3.1L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250-Amp Alternator for 1999-2001 Buick Century (W-Body)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 250-amp high-output alternator replaces the low-output factory charging unit on the 1999-2001 Buick Century to eliminate voltage drops, stabilize the 12V electrical bus, and support high-draw electrical equipment.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Buick Century Charging System Limitation\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eW-Body\u003c\/strong\u003e Century sedans left the plant with standard Delco alternators rated at only 100 to 105 amps. When subjected to extended idling, upgraded sound systems, or supplemental electrical loads, the stock stator windings experience thermal saturation and the OEM internal rectifiers degrade. This causes systemic voltage sag below 12.6V, dimming headlights, premature battery fatigue, and erratic sensor signals across the \u003cstrong\u003eGM 3100 V6\u003c\/strong\u003e powertrain control network.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered and assembled in the USA, this direct-replacement 250-amp unit utilizes heavy-gauge, high-temperature copper windings paired with a reinforced bridge rectifier utilizing heavy-duty avalanche diodes. The precision-balanced rotor minimizes harmonic vibration at high RPM, while the heavy-duty aluminum housing improves convective heat dissipation around the internal regulator. It delivers stable charging current across both low idle speeds and wide-open throttle transitions without stator breakdown.\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;\"\u003e1999-2001 Buick Century\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;\"\u003e\n\u003cstrong\u003e3.1L GM 3100 V6 (L82 \/ LG8)\u003c\/strong\u003e \/ \u003cstrong\u003eW-Body\u003c\/strong\u003e\n\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;\"\u003e160-175 hp \/ 185-195 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;\"\u003e\n\u003cstrong\u003e321-1809\u003c\/strong\u003e, \u003cstrong\u003e334-2478\u003c\/strong\u003e, \u003cstrong\u003eAL8735X\u003c\/strong\u003e, \u003cstrong\u003e10447094\u003c\/strong\u003e, \u003cstrong\u003e10447096\u003c\/strong\u003e, \u003cstrong\u003e10464449\u003c\/strong\u003e, \u003cstrong\u003e210-5160\u003c\/strong\u003e, \u003cstrong\u003e8234605\u003c\/strong\u003e, \u003cstrong\u003e8234-5\u003c\/strong\u003e\n\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 Buick Century Custom \/ Limited (3.1L V6)\u003c\/li\u003e\n  \u003cli\u003e2000 Buick Century Custom \/ Limited (3.1L V6)\u003c\/li\u003e\n  \u003cli\u003e2001 Buick Century Custom \/ Limited (3.1L 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 W-Body Century?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct bolt-in fit for the 1999-2001 Buick Century equipped with the \u003cstrong\u003e3.1L V6 (LG8 \/ L82)\u003c\/strong\u003e engine using factory mounting locations.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade the primary charging wiring?\u003c\/h4\u003e\n\u003cp\u003eYes, running a 250A unit requires performing a \"Big 3\" wiring upgrade with minimum 1\/0 or 4-gauge battery-to-chassis and alternator-to-battery cabling to handle the increased amperage safely.\u003c\/p\u003e\n\n\u003ch3\u003eThe Buick Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle heavy-duty continuous electrical demands, this unit restores long-haul electrical system integrity, providing consistent operating voltage without heat-induced charging loss.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67566185545976,"sku":"DS-EDBU52LY0","price":236.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-buick-century-1999-2001-3-1l-1.jpg?v=1791084223","url":"https:\/\/performancechiptuning.com\/products\/high-output-alternator-for-buick-century-1999-2001-3-1l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}