Fitment
Compatible with Cummins and DAF diesel truck SCR (Selective Catalytic Reduction) emission systems requiring NOx monitoring. Used in exhaust aftertreatment systems across selected heavy-duty engines where OEM part numbers 4326769, 2139930, 1928760, or 1953520 are specified. Verify exact OEM reference and system configuration before installation.

FAQ
Q1: What does this NOx sensor measure?
A: It measures nitrogen oxide levels in diesel exhaust gases for SCR emission system control.

Q2: Which trucks is it compatible with?
A: It is used in selected Cummins and DAF diesel trucks depending on engine and emission system setup.

Q3: Are all listed part numbers interchangeable?
A: No, compatibility depends on exact OEM part number and emission system configuration.

Q4: Does installation require programming?
A: Some vehicles may require ECU reset or diagnostic adaptation after replacement.

Q5: Where is it installed?
A: It is installed in the exhaust aftertreatment system, typically before or after the SCR catalyst.