FITMENT:
Compatible with Volvo heavy-duty trucks equipped with Euro 6 SCR (AdBlue/DEF) systems, including:

• Volvo FH series (FH13 / FH16 / FH500 / FH540 / FH750)
• Volvo FM series (FM9 / FM11 / FM13 / FMX / FM500)
• Volvo D16 engine platforms
• Some Renault Trucks (rebadged SCR systems sharing Volvo architecture)

OEM / Cross reference numbers:

• 22219284
• 5WK96732B / 5WK9 6732B
• 21326719 / 21474017 / 22315987 / 21691455 (common interchange family)

This NOx sensor is part of Volvo’s Euro 6 SCR aftertreatment system, typically used as a post-catalyst (outlet) NOx sensor to monitor SCR efficiency and emissions performance.

FUNCTION:

• Measures nitrogen oxide (NOx) levels after SCR catalyst
• Sends data to ECU via CAN communication
• Controls AdBlue dosing strategy for emissions compliance
• Monitors SCR catalyst efficiency and system health

INSTALLATION POSITION:

• Outlet / downstream NOx sensor
• Mounted after SCR catalytic converter in exhaust system

FAQ:

Q1: Is this inlet or outlet sensor?
A1: This 5WK96732B / 22219284 sensor is mainly used as the outlet (post-SCR) NOx sensor in Volvo Euro 6 systems.

Q2: What trucks does it fit?
A2: Volvo FH and FM Euro 6 trucks, especially D13 and D16 engine platforms.

Q3: What happens if it fails?
A3: SCR warning light, engine derate, incorrect NOx readings, AdBlue system faults, or limp mode.

Q4: Are all 5WK96732B sensors the same?
A4: They share the same base sensor but may differ in cable length, mounting, or ECU calibration depending on OEM application.

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