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

OEM reference numbers: 5WK96751C, 4326862, 4326862RX.
Used in diesel exhaust aftertreatment system for NOx monitoring (DEF/AdBlue SCR system).
Installed in exhaust system (inlet or outlet position depending on engine configuration, commonly SCR downstream or upstream sensor depending on platform).
Fitment must be confirmed by OEM part number and emission system layout before installation.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM numbers 5WK96751C or 4326862 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 of Cummins diesel engines, before or after the catalytic converter depending on configuration.

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.