Product Summary: ACDelco 213-4714 Professional Heated Oxygen Sensor. From ACDelco. Price. One-time purchase Using this measurement, the engine management computer can adjust the air/fuel ratio near the optimum value of 14., 7:1., At this ratio, engine performance, emissions, and fuel economy are all optimized. This premium aftermarket replacement oxygen sensor is manufactured to meet your expectations for fit, form, and function. It is a special feedback sensor on your vehicle’s exhaust system. Acdelco 213-4724 Professional Heated Oxygen Sensor Location ACDelco 213-4721 Professional Heated Oxygen Sensor Professional O2 Sensor ACDelco 213-4724 Professional Heated Oxygen Sensor : : Car & Motorbike About this item Detect oxygen content in the exhaust gases to optimize emissions and fuel economy Coverage available for GM and non-GM applications Professional, premium aftermarket replacement Provides the performance and dependability you expect from ACDelco Manufactured to meet expectations for fit, form, and... Coverage available for GM and non-GM applications An ACDelco Professional, premium aftermarket Oxygen (O2) Sensor is the high quality replacement ideal for many vehicles on the road today. Oxygen Sensor-Heated ACDelco 213-4244 Provides the performance and dependability you expect from ACDelco