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 configuration)
• Heavy-duty trucks and commercial diesel vehicles using SCR aftertreatment systems
  Using reference numbers:
• 5WK97103A
• 12412141
• 5WK96756 (Continental/Bosch sensor family cross-reference)

Typically used in Euro 5 / Euro 6 and EPA SCR emission control 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 installed in the exhaust aftertreatment system, usually before or after the SCR catalytic converter depending on engine layout.

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

Q4: Are these part numbers interchangeable?
A4: They are cross-referenced variants within the same sensor family, but exact fitment depends on engine model, emission standard, and ECU calibration.