Fitment

Fits for:

• Volvo FH / FM / FL / FE trucks
• Volvo VNL / VNR / VNX heavy-duty trucks (market dependent)
• Volvo buses (B7R / B9R / B11R / B8R SCR applications)
• Renault Trucks (Premium / Magnum / Kerax / Midlum with shared SCR systems)
• Engine: Volvo D13 / D11 / D16 diesel engines with SCR (AdBlue / DEF) system
• Position: Exhaust NOx sensor (inlet or outlet depending on system layout)
• OE / Cross References: 21473997 / 22315990 / 21531794 / 20873117 / 20873395 / 21244501 / 21984358 / 22219283 / 22827993 / 5WK96664D / 5WK97371 / SNS664D / 7422827993 / 7422315990 / 7421984358

FAQ

Q1: Are 21473997 and 5WK96664D the same sensor?
A1: Yes. 21473997 is the Volvo OE number, and 5WK96664D is the NOx sensor reference used in the same SCR diesel emissions system.

Q2: What vehicles use this sensor?
A2: It is widely used on Volvo FH/FM/FL/FE trucks, Volvo buses, and Renault heavy-duty vehicles equipped with Euro 5 / Euro 6 SCR (AdBlue) systems.

Q3: Is this inlet or outlet sensor?
A3: It can be used as either inlet or outlet NOx sensor depending on SCR system configuration and ECU setup.

Q4: What does this sensor do?
A4: It measures nitrogen oxide (NOx) levels in exhaust gases and sends data to the ECU, which controls AdBlue dosing to reduce emissions and maintain SCR efficiency.