GM Genuine Parts Roof Side Rails are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These caps are installed in your vehicle's rocker roof side rails for a finished appearance. GM Genuine Parts are the true OE parts installed during the production 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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• Installed in your vehicle's roof side rails for a finished appearance
• 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
• Collision parts are designed to help promote proper and safe repair