FITMENT
Compatible with Caterpillar Inc. diesel engines equipped with SCR (Selective Catalytic Reduction) systems requiring NOx sensor monitoring.
Common applications include Caterpillar Inc. heavy-duty off-highway equipment, industrial engines, and commercial diesel systems using reference 5WK96725 / 359-9171-02.

FAQ
Q1: What does this NOx sensor do?
A1: It measures nitrogen oxide levels in exhaust gases and sends signals to the engine control unit for emissions control.

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

Q3: What are signs of failure?
A3: Engine warning light, emissions-related fault codes, and incorrect SCR system performance.

Q4: Is it compatible with all Caterpillar engines?
A4: No, compatibility depends on the exact engine model and emissions system configuration.