GM Genuine Parts Engine Timing Belt Tensioners are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They help keep constant tension on the timing belt to help prevent the engine from jumping time. They also help keep the valve train and timing in sync. 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 keep constant tension on the timing belt to help keep the vehicle running in proper time
• 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

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