This FEBI BILSTEIN NOx sensor, part number 197494, is designed for urea injection systems. It plays a crucial role in monitoring and controlling nitrogen oxide (NOx) emissions from your vehicle's exhaust. Proper functioning of the NOx sensor is essential for the efficient operation of selective catalytic reduction (SCR) systems, which are used to reduce harmful emissions. By accurately measuring NOx levels, this sensor helps the vehicle's engine control unit (ECU) to optimize the urea injection process, ensuring compliance with emissions standards. FEBI BILSTEIN is known for producing high-quality automotive components. This sensor is manufactured to meet stringent industry standards, providing reliability and durability for your vehicle's emissions control system.