GM Genuine Parts Engine Harmonic Balancers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These harmonic balancers are connected to the crankshaft of the engine to help reduce vibration and serve as a pulley for the accessory drive belts.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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• Help reduce vibrations caused by the crankshaft
• Serves as a pulley for the accessory drive belts
• 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