VolvoHydraulic Parts

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

This is a Washer Pump, responsible for delivering washer fluid to the windshield for cleaning. It is designed to meet Volvo's performance standards, ensuring adequate spray coverage, unlike a worn pump with a corroded motor or clogged impeller that can result in weak or intermittent fluid delivery. Operators might notice a lack of washer fluid spray, a weak stream, or no fluid at all when this pump fails.

Washer Pump 3980681 20409793 20747536 21189159 For Volvo Bus B10L B12B Truck Fh Fh12 Fm Vm – Part No 3980681 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 TypeWindshield Washer Pump
MaterialPlastic and metal components
ApplicationWindshield washer system
Service LifeReplace as needed based on function
CompatibilityVolvo 20409793, 20747536, 21189159
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary symptom of a failing washer pump is the absence of washer fluid spray on the windshield when the washer control is activated. If ignored, the issue will persist, leaving the windshield uncleared during driving conditions that require it, such as rain or dirt accumulation. Inadequate windshield cleaning can severely impair visibility, increasing the risk of accidents.

Installation Tip

Ensure the washer fluid reservoir is emptied before removing the old pump to prevent fluid spillage and to allow for easier access. Connect the electrical connector and fluid lines securely to the new pump to ensure proper operation and prevent leaks.

Service Note

Check the washer fluid reservoir level and inspect the washer fluid lines and nozzles for any cracks or blockages when replacing the pump.