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| Sensor Type | Nitrogen Oxide Sensor |
| Color | Black/Silver |
| Connector Shape | Rectangular |
| Total Length | 32.29 Inches (820 Millimeters) |
| Pin Count | 4 |
| Thread Size | M20x1.5 |
| Voltage | 24V |
| Emissions Standard | EPA10 / Euro 5 |
| Technical | Gen 2.0 Upgradable Software |
Manufacturer No.
28949402894940RX2894940NX
OEM Part No.
2894940
Engine Part No.
ISXQSXISCISLQSCISBQSBISFISDEISLE
Interchange No.
2871979498457749542225WK96675A64029526402952R2269011
Fitment Vehicles
Heavy Duty TruckConstruction Equipment
Electrical and Electronic System - Industrial Encyclopedia
Cummins OEM 2894940 NOx sensor, suitable for EPA10 15L ISX/QSX engines. Direct replacement for OEM numbers 2894940, 2894940RX, 2871979, 4984577, 4954222. The sensor monitors NOx levels before and after the SCR catalyst, precisely controlling DEF injection to reduce emissions and optimize performance. Thread size M20x1.5, 4-pin rectangular connector, total length 32.29 inches. Provides diagnostic feedback to reduce engine downtime.