FITMENT
Compatible with Cummins diesel engines and heavy-duty SCR (Selective Catalytic Reduction) AdBlue emission systems requiring NOx monitoring.
Common applications include:

• Cummins ISB / ISX / X-series diesel platforms
• Truck and commercial SCR aftertreatment systems (various OEM applications)
• Engine systems using reference:
  • SNS0142C
  • A3C00895100-03 / A3C0089510003
  • 4326872 / 4326873 (cross-reference family depending on configuration)

This sensor is widely used in Euro 5 / Euro 6 SCR exhaust systems for emission control compliance.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide (NOx) levels in the exhaust system and sends real-time data to the ECU to control AdBlue/DEF injection and reduce emissions.

Q2: Where is it installed?
A2: It is installed in the exhaust aftertreatment system, typically upstream or downstream of the SCR catalyst depending on engine setup.

Q3: What are symptoms of failure?
A3: Check engine light, SCR/AdBlue system warnings, NOx sensor fault codes, reduced engine power, or limp mode activation.

Q4: Is SNS0142C interchangeable with A3C00895100-03?
A4: Yes, SNS0142C is the sensor model designation and A3C00895100-03 is the OEM Cummins reference for the same SCR NOx sensor assembly.