This original equipment oxygen sensor has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. An ACDelco GM Original Equipment Oxygen (O2) Sensor is a GM-recommended replacement for your vehicle’s original component, and is a special feedback sensor on your vehicle’s exhaust system. GM-recommended replacement part for your GM vehicle’s original factory component ADO-12665061 ... Quantity: Sold individually. ... ACDelco GM Genuine Parts oxygen (O2) sensors are special feedback sensors on your vehicle's exhaust system and are... This sensor measures the proportion of oxygen in the exhaust gases. Using this measurement, the engine management computer can adjust the air/fuel ratio Offering the quality, reliability, and durability of GM OE GM Genuine Parts Heated Oxygen Sensor AC 12665061 | Buy Online 2015-2017 GM - Heated Oxygen Sensor - GM (12665061) - My GM Part