The Baian NOx Nitrogen Oxide Sensor for DAF PACCAR Mx13 2236409 2236409PE BA036409 is a high-quality oxygen sensor designed for direct fitment in the engine compartment of vehicles. This sensor, manufactured by Baian, ensures accurate monitoring of nitrogen oxide levels to help regulate emissions and improve overall vehicle performance. With a focus on precision and reliability, this product is a crucial component in maintaining the efficiency of exhaust and emission systems in heavy-duty trucks and vehicles.