GM Genuine Parts 4WD Transfer Case Actuators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. When activated, a signal is sent to the actuator to engage your vehicle's four-wheel drive. 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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• Controls and operates your vehicle's four-wheel drive
• 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