FITMENT
Compatible with GM diesel vehicles equipped with SCR (Selective Catalytic Reduction) systems requiring NOx sensor monitoring.
Common applications include GM diesel passenger vehicles and light commercial vehicles using reference 5WK96631C / 12642310.

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

Q2: Where is this sensor installed?
A2: It is mounted in the exhaust system, typically upstream or downstream of the SCR catalyst depending on vehicle setup.

Q3: What are common failure symptoms?
A3: Engine warning light, emissions-related fault codes, and reduced SCR system efficiency.

Q4: Is this sensor compatible with all GM diesel vehicles?
A4: No, compatibility depends on the exact engine type and emissions system configuration.