FITMENT:
Compatible with Cummins Inc. heavy-duty diesel engines equipped with SCR emission systems (24V applications).

OEM reference numbers: 5WK97348A, 5WK97348A, 4326769.
Used in diesel exhaust aftertreatment system for NOx monitoring (DEF/AdBlue SCR system).
Installed in exhaust system (inlet or outlet position depending on engine and SCR layout).
Fitment must be confirmed by OEM part number and emission system configuration before installation.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM numbers 5WK97348A or 4326769 with your original sensor and verify connector type, voltage (24V), and SCR system configuration.

Q2: Where is this NOx sensor installed?
A2: It is installed in the SCR exhaust aftertreatment system on Cummins diesel engines, either upstream or downstream depending on system design.

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

Q4: Is this compatible with all Cummins engines?
A4: No, compatibility depends on engine model and emission system configuration. OEM number must be matched exactly.

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