ACDelco GM Original Equipment Alternators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Do your headlights dim or dash flicker while idling? It may be time for a new alternator. These alternators convert engine-driven mechanical energy into electrical power, acting as the hub of the charging system to keep the battery charged while supplying steady voltage to lights, ignition, and onboard electronics. By maintaining proper energy flow, they help prevent unexpected battery drains, rough running from low system voltage, and sudden stalling when electrical demand spikes in hot or cold weather. Built to meet the design intent of the original charging system and end-of-line tested for dependable output, they integrate materials and technologies for consistent daily performance. Available in new ACDelco parts for original factory quality and in remanufactured options rebuilt to GM standards. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles.

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• Consistent power is provided for lights and interior electronics
• Maintains steady electrical performance throughout your daily commute
• Converts mechanical energy into electrical power for the vehicle
• Handles the heavy electrical loads of modern daily driving
• Works alongside the battery to manage overall electrical demand
• Acts as the central hub of the automotive charging system
• GM engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
• GM regularly updates production and service part designs to integrate new materials and technologies