PAI Nox Sensor 050775 | Replaces Cummins 4326874 cm Atlas Copco: 5580013761

Atlas Copco: 5580013761

D13 (legacy chemistry only)

5410920505

or deformed cap allowing oil or grease leaks at the wheel end

Caterpillar: 3I1203

PAI Nox Sensor 050775 | Replaces Cummins 4326874 cm Atlas Copco: 5580013761PAI 050775 is an aftermarket nitrogen oxide (NOx) sensor for 2013 2018 Cummins on highway engines. The sensor mounts in the SCR aftertreatment system upstream and downstream of the DEF dosed catalyst and reports NOx concentration to the engine ECU; degraded readings trigger SPN 3216 3226 fault codes, derate, and DEF dosing errors. Replaces Cummins 4326874, 4326874RX, and 2872946 with a direct fit M20x1. 5 thread, 4 pin connector, and 43. 4" cable