VolvoHydraulic Parts

21189159 — Washer Pump 3980681 20409793 20747536 21189159 For Volvo Bus B10L B12B Truck Fh Fh12 Fm Vm

This washer pump is responsible for supplying washer fluid to the windshield nozzles, ensuring clear visibility for the operator. It is built to Volvo's robust standards, providing consistent fluid delivery and durability for demanding operational environments. Operators may notice a weak or non-existent spray of washer fluid, or the pump making unusual noises when it begins to fail.

Washer Pump 3980681 20409793 20747536 21189159 For Volvo Bus B10L B12B Truck Fh Fh12 Fm Vm – Part No 21189159 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryHydraulic 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

Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.

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

Part TypeWasher Pump
MaterialPlastic and rubber components
ApplicationWindshield washer system
Service LifeReplace every 5 years or as needed
CompatibilityVolvo specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing washer pump is a weak or intermittent spray of washer fluid onto the windshield. If ignored, this can lead to a complete loss of washer fluid function, impairing visibility in dirty or inclement weather conditions. The ultimate consequence is reduced operator safety due to obstructed vision.

Installation Tip

Ensure the electrical connections are clean and secure, as poor connections can cause intermittent pump operation. Avoid running the pump dry for extended periods, as this can damage the internal seals.

Service Note

Inspect the washer fluid reservoir for cracks or leaks and check the washer nozzles for blockages.