2236409PE BA036409 New Inlet Nox Sensor Nitrogen Oxide Sensor 2236409 Fit for MX13 PACCAR Automotive Oxygen Sensors Aftermarket Parts Replace#2236409PE 2236409PEX Features:Plug and play design,direct replacement,so there‘s no additional programming required.Each product has been tested and improved before leaving our factory.The Nitrogen Oxide sensor is durability and stability Service:Within 12 months,If you have any questions,you can communicate with us directly, we will give you a satisfactory answer NOTE:Please make sure that the model number, part number and photo is the same as your original ones before ordering to Avoid placing wrong orders and wasting your time