VolvoElectrical Parts

3948425 — Accelerator Pedal Sensor 21116881 81519590 3948425 85109590 For Volvo Truck Fh Fm Fm9 Fm12 Fh12 Fh16

This accelerator pedal position sensor translates the driver's input on the accelerator pedal into an electrical signal for the engine control module (ECM), regulating engine speed and power output. Built to meet strict OEM quality specifications, it offers reliable and consistent signal transmission, unlike a worn sensor that may produce erratic readings. Operators may notice delayed throttle response, inconsistent engine RPM, or the engine entering a limp-home mode when this sensor malfunctions.

Accelerator Pedal Sensor 21116881 81519590 3948425 85109590 For Volvo Truck Fh Fm Fm9 Fm12 Fh12 Fh16 – Part No 3948425 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 TypeAccelerator Pedal Position Sensor
MaterialPlastic, Metal
ApplicationEngine Throttle Control
Service LifeReplace as needed based on diagnostic codes
CompatibilityVolvo Truck Fh Fm Fm9 Fm12 Fh12 Fh16
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing accelerator pedal sensor is often a noticeable delay or inconsistency in throttle response. If the issue persists, the engine may exhibit erratic RPM fluctuations, or the vehicle could enter a reduced power mode. Continued operation with a faulty sensor can lead to unpredictable acceleration, impacting the safety and efficiency of the vehicle.

Installation Tip

Ensure the accelerator pedal is in the fully released position before removing the old sensor and installing the new one. Avoid applying excessive force when connecting the electrical connector, as this can damage the pins.

Service Note

Check the wiring harness and connectors for any signs of damage or corrosion, and verify the integrity of the throttle body and linkage when replacing the accelerator pedal sensor.