GM Genuine Parts Oxygen Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These sensors monitor how much unburned oxygen is in the exhaust as the exhaust exits the engine.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 control engine fuel mixture
• Helps supply accurate signals to the engine computer to make adjustments
• Helps keep engine operation running smooth
• Detects oxygen content in the exhaust gases
• 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