VolvoElectrical Parts

VOE21984358 — 24V Nitrogen Oxide Sensor Voe21984358 Voe22219283 5Wk97371 For Volvo Truck Fh4 Fm4 Fh500 Fm500

This 24V Nitrogen Oxide (NOx) sensor measures the amount of NOx in the exhaust gases, providing critical data for the engine's emission control system to optimize fuel combustion and reduce pollutants. Manufactured to meet stringent OEM standards, it offers accurate and reliable readings, unlike a worn sensor that may produce false data or fail completely, triggering emission faults. Operators may notice increased exhaust smoke, reduced engine power, illuminated check engine lights, or failed emissions tests when this sensor malfunctions.

24V Nitrogen Oxide Sensor Voe21984358 Voe22219283 5Wk97371 For Volvo Truck Fh4 Fm4 Fh500 Fm500 – Part No VOE21984358 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryElectrical Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Disconnect main battery before working on electrical components. Use dielectric grease on all connector pins. Check ground connections — most electrical faults trace to poor grounds. Test with multimeter before installing new parts.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeNitrogen Oxide (NOx) Sensor
MaterialCeramic and metal alloys
ApplicationEngine exhaust emission control
Service LifeReplace as needed based on diagnostic testing
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A malfunctioning NOx sensor can lead to the engine's emission control system operating inefficiently, potentially causing increased soot buildup or reduced fuel economy. If ignored, this can result in the engine entering a limp-home mode or failing roadside emissions inspections. The primary risk is non-compliance with environmental regulations and potential engine derating.

Installation Tip

Ensure the exhaust system is completely cool before attempting removal to avoid burns and potential damage to the threads. Apply anti-seize compound to the threads of the new sensor, but be careful not to get any on the sensor tip itself.

Service Note

Inspect the Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) system components for proper operation and any related fault codes when replacing the NOx sensor.