GM Genuine Parts Alternators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts alternators, also referred to as generators, are the true OE parts installed during production.OE generators are designed, engineered, tested to rigorous standards and backed by General Motors.The integration of the generator with the vehicle's engine and electrical systems takes years of designing, component and vehicle testing to to meet all GM engineering requirements. That's why GM Genuine Parts OE generators are the only generators recommended for GM vehicles.GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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• In 2022 GM began a transition to high-efficiency generators. High efficiency generators support the high electrical loads of today's vehicles
• The wire fusing and wire gauge size for the generator has been specifically engineered for the GM vehicle application
• The generator is an active device which has stringent noise and vibration requirements in the GM vehicle application. Fan sizes and bracketry are specifically designed to help prevent noise and vibration
• GM calibrations are designed for the GM OE generator from a regulator and torque standpoint
• Remanufactured GM OE generators are also available, depending on vehicle application
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies