FITMENT
Compatible with John Deere diesel engines and machinery equipped with SCR (Selective Catalytic Reduction) systems requiring NOx monitoring.
Common applications include John Deere agricultural and construction equipment using reference 5WK96785 / RE553441.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide levels in exhaust gases and sends real-time data to the ECU to control DEF (AdBlue) dosing for 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 machine configuration.

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

Q4: Is it compatible with all John Deere equipment?
A4: No, compatibility depends on engine model, emissions tier, and SCR system setup.