FITMENT:
Compatible with Cummins-powered trucks and DAF Euro 5 / Euro 6 SCR systems, including:

• DAF LF 45 / LF 55
• DAF CF / XF (select SCR configurations)
• Cummins ISB / ISD / ISBE engines
• Some bus and coach applications (Euro 5/6 SCR systems)

OEM / Cross reference numbers:

• 2894940
• 2871979
• 4984577
• 4954222
• 5WK96675A / 5WK9 6675A
• 1705572 (related OEM reference in some systems)

This NOx sensor is part of the SCR exhaust aftertreatment system, used to measure nitrogen oxide levels and regulate AdBlue dosing for emissions compliance.

FUNCTION:

• Measures NOx concentration in diesel exhaust gases
• Sends real-time data to ECU via CAN (J1939 communication)
• Controls SCR/AdBlue injection for catalyst efficiency
• Ensures Euro 5 / Euro 6 emissions compliance
• Helps prevent engine derate and SCR system faults

INSTALLATION POSITION:

• SCR system inlet or outlet sensor (depends on OEM layout)
• Mounted on exhaust line between DPF and SCR catalyst or after SCR system

IMPORTANT NOTE:
This sensor belongs to a multi-OE interchangeable SCR NOx sensor family, meaning:

• Same base sensor used across DAF and Cummins platforms
• Differences may include cable length, mounting angle, and calibration
• Some variants are interchangeable only within same SCR position (inlet/outlet)

Incorrect installation position can trigger SCR faults or limp mode.

FAQ:

Q1: Is this inlet or outlet sensor?
A1: It can be used as inlet or outlet depending on DAF/Cummins SCR configuration.

Q2: What vehicles does it fit?
A2: DAF LF/CF/XF trucks and Cummins ISB/ISD engines with Euro 5/6 SCR systems.

Q3: What are failure symptoms?
A3: SCR warning light, AdBlue faults, engine derate, incorrect NOx readings, or limp mode.

Q4: Are all listed part numbers interchangeable?
A4: Yes, 2894940 / 2871979 / 4984577 / 5WK96675A belong to the same sensor family.

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