Cummins NOx Sensor A2C34968300-01 2872949 A034M379 12V applicable, trustworthy

If Cummins engines show reduced power, abnormal fuel consumption, or the “Check Engine” light with NOx emission fault code, the NOx sensor has aged or failed. This sensor monitors NOx concentration in exhaust and feeds ECU to precisely control urea injection for SCR, reducing emissions while maintaining engine performance. OEM A2C34968300-01, compatible with 2872949, A034M379, and 5WK9 6754; fits many Cummins Euro V/VI diesel engines. Installation should occur only after engine cooling; avoid burns; secure sensor harness and route to prevent contact with exhaust or moving parts.