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 (SCR-equipped variants depending on calibration)
• Heavy-duty trucks using Cummins SCR aftertreatment systems
• Industrial and commercial diesel engine platforms with Euro 5 / Euro 6 emission systems

Using reference numbers:

• SNS968 (sensor family designation)
• A2C1981980001 (Continental/Bosch OEM reference number)

This sensor is used in SCR exhaust aftertreatment systems to monitor NOx levels and control AdBlue/DEF dosing for emissions compliance.

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

Q2: Where is it installed?
A2: It is installed in the SCR exhaust 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 system warnings, NOx sensor fault codes, reduced engine power, or limp mode activation.

Q4: Is SNS968 interchangeable across Cummins engines?
A4: It is a common SCR NOx sensor platform, but exact compatibility depends on engine model, emission standard, and ECU calibration.