VolvoElectrical Parts

21508269 — Turbocharge Speed Sensor 85151481 21508269 For Volvo Truck Fh4 Vhd Vnm Vnl Vah

This turbocharger speed sensor is essential for monitoring the rotational speed of the turbocharger's turbine and compressor wheels. It sends critical data to the engine control module (ECM) to optimize turbocharger performance and prevent over-speed conditions, ensuring efficient engine power delivery. Operators may notice a loss of engine power, increased exhaust smoke, or a check engine light if this sensor is not functioning correctly. This sensor is designed to meet stringent OEM specifications for durability and accuracy.

Turbocharge Speed Sensor 85151481 21508269 For Volvo Truck Fh4 Vhd Vnm Vnl Vah – Part No 21508269 – 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 TypeTurbocharger Speed Sensor
MaterialMetal and electronic components
ApplicationTurbocharger system monitoring
Service LifeReplace as needed, typically lasts many years
CompatibilityOEM cross-reference 85151481
ConditionNew — OEM specification aftermarket

Failure Symptoms

A malfunctioning turbocharger speed sensor can manifest as a noticeable reduction in engine power or sluggish acceleration. If the issue persists, the engine control module may trigger a check engine light or place the engine in a reduced power mode to prevent potential damage. Continued operation without addressing this can lead to inefficient turbocharger operation and potential internal damage.

Installation Tip

Ensure the turbocharger is cool before attempting to remove or install the sensor to avoid burns. Be careful not to cross-thread the sensor when screwing it into the turbocharger housing.

Service Note

When replacing the turbocharger speed sensor, inspect the turbocharger impeller blades for damage and check all exhaust and intake connections for leaks.