Uncover accurate engine performance with the ACDelco GM Original Equipment Oxygen Sensor, part number 213-4764. Engineered for a precise fit, this sensor is a vital component in your vehicle's emissions system, designed to measure the oxygen content of your car's exhaust gases. With this information, your engine's fuel delivery can be adjusted to optimize combustion and minimize emissions. The sensor boasts a robust design, ensuring durability and reliability. Its cross-reference with part number 5557 2993 allows for easy verification of compatibility with your vehicle. Keep your car running smoothly with this high-quality replacement part that meets the exacting standards of ACDelco GM Original Equipment. New in box