Cummins Nitrogen Oxygen Sensor 5WK96614I / LFN7-18-8G1, Precision Emission Monitoring Upgrade Part

Cummins NOx sensor, OEM numbers LFN7-18-8G1 and 5WK96614I, designed for diesel engines; installed in the exhaust path. It directly monitors NOx concentration in exhaust and feeds data to the ECU to precisely control urea injection, ensuring emissions compliance. Fits Cummins ISB, ISL and ISC engines. Installation difficulty is medium; labor about 0.5 hours; avoid bending wires. If the dashboard engine fault light comes on, power drops, or urea consumption is abnormal, the sensor signal is out of specification or failed and replacement is required.