Over a hundred models are available - NOx sensors for BMW, Mercedes-Benz, VW, Volvo, MAN, Cummins, DAF, HINO, Toyota and more. Every sensor is manufactured from high-quality materials. Please double-check the OE number and product photo before placing your order. All parts ship directly from our factory, and shipping is free on every NOx sensor.
The NOx sensor is part of the NOx reduction aftertreatment system used in diesel vehicles with urea based SCR systems. The sensor located upstream of the SCR catalyst directly measures the engine-out NOx gas concentration, which helps determine the optimum amount of urea injection. The NOx sensor downstream of the SCR catalyst is used to monitor the performance of the catalyst. Accurate NOx measurement is in high demand to comply with increasingly strict NOx emissions regulations. The NOx sensor is also capable of measuring O2 concentration, just like a wide range air-fuel sensor.
SCR Application
Find the right part by your OE number
Find the right part by searching with your OE number