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

• Cummins ISB / ISX / X-series diesel engines (depending on emission calibration)
• Heavy-duty trucks and commercial vehicles using SCR exhaust aftertreatment systems
  Using reference:
• 5WK97104A
• Cummins NOx sensor OEM application (varies by ECU and emission standard)

Typically used in Euro 5 / Euro 6 and EPA SCR systems.

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 mounted in the exhaust aftertreatment system, usually before or after the SCR catalyst depending on engine configuration.

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

Q4: Is 5WK97104A interchangeable with other Cummins sensors?
A4: It may have cross-compatibility within the same sensor family, but exact fitment depends on engine model, emission standard, and ECU calibration.