Product Details: The Dinex Nitrogen Oxide Sensor is designed to help improve emissions control and the overall performance of your vehicle. This sensor is designed to detect and monitor nitrogen oxide levels in the exhaust system, helping to reduce emissions and improve fuel efficiency. It is made from high-quality materials and is designed to last for a long time, providing reliable performance. This sensor is easy to install and is compatible with Freightliner and Detroit Diesel engines. FleetPride is your First Click in Heavy Duty®.