OE Service Oxygen SensorsWhen you are looking for a match to original equipment specifications in a replacement part for your GM vehicle, trust ACDelco to get the job done. Our lineup of OE Service Fuel Injectors, Control Modules, Mass Air Flow Sensors, Oxygen Sensors, Exhaust Gas Recirculation Valves, Manifold Absolute Pressure Sensors, Throttle Position Sensors, Idle Air Control Valves and Secondary Air Injection Reaction Systems will help your GM vehicle run as efficiently and cleanly as the day it rolled off the line. Trust ACDelco to help your vehicle run clean and green.If your Oxygen Sensor is not functioning properly, you are robbing yourself of good performance and costing yourself money at the gas pump. Let ACDelco's Original Equipment Service Oxygen Sensors help. Meets the rigorous OBD II standards. Coverage for all GM makes and models.