4326873 2013-2019 Genuine Cummins ISB 6.7L NOx Sensor

Cummins ISB 6.7L NOx Sensor — What It Does Inventory SKU: 4326873 The NOx sensor on the Cummins ISB and 6.7L is the emissions system’s measuring instrument — a ceramic sensing element reading nitrogen-oxide concentration in live exhaust and reporting it through the smart electronics module built into its own harness. The SCR system’s closed loop runs on these readings; the sensor doesn’t just observe the system, it steers it. About this sensor: The sensing ceramic is moisture’s enemy: hit a hot element with condensation and it cracks, which is why these sensors deliberately wait for the exhaust to pass its dew…