GM Genuine Parts Exhaust Manifold Heat Exchangers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These exchangers convert waste heat from the engine's exhaust into useable heat. 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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• Heat can be used to warm the engine coolant
• Helps optimize engine warm up
• Helps improve engine efficiency
• 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