Feature: 1. OE Number: The referencing OE number of this nitrogen oxide sensor are 2872942, 2872942NX, 4326872RX, molded and designed depend on the original data. 2. Fitment: The nitrogen oxide nox sensor is a replacement for Cummins Engine CES SNS 12V GEN2.8, please check the model of your engine before ordering. 3. Optimize Fuel Consumption: The nitrogen oxide nox sensor is used to measure nitrogen oxide levels in exhaust emissions to optimize exhaust and fuel economy. 4. Precision Control: Precisely measure the concentration of oxygen in exhaust and feed this information back to the engine, thereby controlling the amount of fuel injected. 5. Ideal Replacement: Direct replacement installation, meets or exceeds OEM standards for the replacement of old and damaged one on original vehicles. Specification: Item Type: Nitrogen Oxide SensorOE Number: 2872942, 2872942NX, 4326872RX .Material: Metal alloy, ABSFitment:Replacement for Cummins Engine CES SNS 12V GEN2.8 Package List: 1 x Nitrogen Oxide Sensor Note: Please double check the part number of your item, matching information is for reference only.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!