GM Genuine Parts 55574136 Heated Oxygen Sensor

GM Genuine Parts Oxygen (O2) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These sensors are special feedback sensors on your vehicle's exhaust system and measure the proportion of oxygen in exhaust gases. Using this measurement, the engine control module (ECM) can adjust the air/fuel ratio to near the optimal value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. 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).

• Whether you need exact original equipment specification parts or high-quality replacement parts, you can rely on ACDelco Emission components, Fuel Injection and Control Modules to deliver. With our OE Service and Professional lines, we can keep your GM car, truck or SUV running in tip-top form. Our portfolio includes: 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.
• When 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!