FITMENT:
Compatible with PACCAR MX-13 diesel engine platforms used in heavy-duty trucks such as Kenworth T680 and Peterbilt 579.
OEM reference numbers: 2236409PE, 5WK96759A.
Inlet NOx sensor used in SCR emission system for exhaust aftertreatment monitoring.
Installed before catalytic converter in exhaust system (inlet position).
Fitment must be confirmed by OEM part number and engine emission system configuration before installation.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM numbers 2236409PE or 5WK96759A with your original sensor and verify connector type and wiring length.

Q2: Where is this NOx sensor installed?
A2: It is installed in the inlet position of the SCR exhaust system on PACCAR MX-13 engines, before the catalytic converter.

Q3: What are common failure symptoms?
A3: Engine warning light, SCR system fault, incorrect NOx readings, or reduced engine performance.

Q4: Is this used for both Kenworth and Peterbilt trucks?
A4: Yes, it is used across PACCAR MX-13 engine applications in multiple truck platforms depending on configuration.

Q5: Does replacement require programming?
A5: Some vehicles require system reset or diagnostic adaptation after installation.