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

• Cummins ISX / X15 / X12 series engines (SCR-equipped variants depending on calibration)
• Heavy-duty trucks using Cummins aftertreatment systems
• Industrial and commercial diesel applications with Euro 5 / Euro 6 emission systems
  Using reference numbers:
• 5WK97102
• A2C93842800-01
• SNS-style SCR NOx sensor family cross reference (depending on system version)

Used in SCR exhaust systems to monitor NOx emissions and control AdBlue/DEF dosing for 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 regulate AdBlue injection and reduce emissions.

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

Q3: What are symptoms of failure?
A3: Check engine light, SCR/DEF warning, NOx sensor fault codes, reduced engine performance, or limp mode activation.

Q4: Is 5WK97102 interchangeable across Cummins engines?
A4: It depends on the SCR system generation and ECU calibration; always verify OEM cross-reference before replacement.