FITMENT
Compatible with Cummins Inc. diesel engines equipped with SCR (Selective Catalytic Reduction) systems requiring NOx monitoring.
Common applications include Cummins heavy-duty on-road and off-road engines using reference SNS3502.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide concentration in exhaust gases and sends data to the ECU to control SCR/DEF dosing and emissions compliance.

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

Q3: What are symptoms of failure?
A3: Engine warning light, SCR system fault codes, increased emissions, and possible engine derating.

Q4: Is it compatible with all Cummins engines?
A4: No, compatibility depends on engine model, emissions standard, and SCR system design.