Ac Delco Emission Sensor,relay,soleniod & Switch

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An ACDelco Professional premium aftermarket Oxygen (O2) Sensor is the high quality replacement ideal for many vehicles on the road today. It is a special feedback sensor on your vehicles exhaust system. This sensor measures the proportion of oxygen in the exhaust gases. 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.