VolvoElectrical Parts

21866608 — Def Level Sensor 22432646 21636394 21834302 21866608 21906237 22015705 22021891 For Volvo Truck Vnl

This DEF level sensor accurately monitors the AdBlue (Diesel Exhaust Fluid) level within the vehicle's tank, crucial for the SCR emissions system. It provides precise readings to the vehicle's computer, ensuring the SCR system operates correctly and preventing system deactivation due to low fluid levels, unlike a faulty sensor that may give inaccurate or no readings. Operators will typically observe a 'Low DEF' warning light or message on the dashboard, or the vehicle may enter a reduced power mode if the DEF level is critically low or the sensor is malfunctioning.

Def Level Sensor 22432646 21636394 21834302 21866608 21906237 22015705 22021891 For Volvo Truck Vnl – Part No 21866608 – 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 TypeDEF Level Sensor
MaterialPlastic and electronic components
ApplicationDiesel Exhaust Fluid (DEF) tank
Service LifeReplace as needed based on performance
CompatibilityVolvo VNL specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A malfunctioning DEF level sensor may display an incorrect DEF fluid level on the dashboard, or trigger a 'Low DEF' warning even when the tank is full. If the sensor fails completely, the SCR system may be disabled, leading to engine power reduction and potential inability to restart the vehicle after shutdown.

Installation Tip

Carefully clean the DEF tank opening before removing the old sensor to prevent debris from entering the tank. Ensure the new sensor is seated properly and the electrical connector is securely fastened.

Service Note

When replacing the DEF level sensor, inspect the DEF tank for any signs of contamination or sediment.