{"product_id":"high-output-alternator-for-buick-lacrosse-2005-2009-3-8l","title":"High Output Alternator for Buick LaCrosse (2005-2009) 3.8L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250-Amp Alternator for 2005-2009 Buick LaCrosse (W-Body)\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 2005-2009 Buick LaCrosse to deliver stable voltage under severe accessory loads and eliminate system voltage drop.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Buick LaCrosse Charging Deficiency\u003c\/h3\u003e\n\u003cp\u003eThe original equipment 125-amp alternator on the GM \u003cstrong\u003eW-Body\u003c\/strong\u003e platform is adequate only for standard factory electronics. Once high-draw audio amplifiers, secondary cooling systems, or supplemental electronics are added, the OEM unit experiences severe voltage sag—especially at curb idle speeds. Sustained thermal loading inside the cramped engine bay causes diode breakdown, premature regulator failure, and chronic undercharging that rapidly degrades the battery.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered and assembled in the USA, this 250-amp unit features precision heavy-gauge copper stator windings, high-temperature internal insulation, and a heavy-duty 12-diode avalanche rectifier bridge. Designed to fit the \u003cstrong\u003e3800 Series III L26\u003c\/strong\u003e engine architecture without custom bracket modifications, it dissipates heat through an optimized aluminum housing, providing dependable continuous amperage and high idle output while mating cleanly to OEM wiring harness connectors.\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;\"\u003e2005-2009 Buick LaCrosse\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;\"\u003e3.8L 3800 Series III (L26) \/ W-Body\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;\"\u003e200 hp \/ 230 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;\"\u003e0 124 425 031, 0 124 425 090, 10339424, 15208916, 20757890, 11126, 11126N, 0-124-425-031, AL8810N, AL8788N, AL8810X, AL8788X, 11126R\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\u003e2005 Buick LaCrosse CX \/ CXL (3.8L V6)\u003c\/li\u003e\n  \u003cli\u003e2006 Buick LaCrosse CX \/ CXL (3.8L V6)\u003c\/li\u003e\n  \u003cli\u003e2007 Buick LaCrosse CX \/ CXL (3.8L V6)\u003c\/li\u003e\n  \u003cli\u003e2008 Buick LaCrosse CX \/ CXL (3.8L V6)\u003c\/li\u003e\n  \u003cli\u003e2009 Buick LaCrosse CX \/ CXL (3.8L 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 LaCrosse?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2009 Buick LaCrosse equipped with the \u003cstrong\u003e3800 Series III L26\u003c\/strong\u003e 3.8L V6 engine. \u003cstrong\u003eDoes not fit models equipped with the 3.6L DOHC HFV6 (LY7) or 5.3L Small-Block V8 (LS4).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eIs an upgraded main power cable required?\u003c\/h4\u003e\n\u003cp\u003eA 1\/0 AWG \"Big 3\" charging wire upgrade from the alternator positive terminal to the battery is strongly recommended to safely deliver the full 250-amp potential without thermal resistance or excessive line drop.\u003c\/p\u003e\n\n\u003ch3\u003eThe Buick Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to sustain heavy sustained draws without dimming cabin lighting or straining GM electrical control modules, this charging unit restores complete electrical stability and long-term operating reliability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67566346928376,"sku":"DS-EGVA3UPIE","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-buick-lacrosse-2005-2009-3-8l-1.jpg?v=1791087030","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-buick-lacrosse-2005-2009-3-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}