GM Genuine Parts Engine Crankshafts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These crankshafts convert the up and down motion of the piston to a rotation motion that transfers through the gearbox to move the wheels. 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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• Helps in the balancing of the engine with the use of weights
• One solid piece usually made of cast iron or forged steel
• 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