MPN:4921728 Fits:For Cummins ISX Features: High Quality Easy install Simple operation Note:1-Firstly, To confirm that this part fits your vehicle, enter your vehicle’s Year, Make, Model, Trim and Engine in the Compatibility Table.2-Please make sure the OE number matches the part you are replacing.3-Please be very careful to check our photos, make sure the photo showed is same as you wanted. Package:1 Pcs EGR Engine Differential Pressure Sensor 2 Pcs Rings(as shown in the picture