GM Genuine Parts Engine Coolant Water Outlet Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These plugs thread into your vehicle's engine coolant water outlet to help prevent coolant leaks. 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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• Threads into your vehicle's engine coolant water outlet to help prevent coolant leaks
• 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