VolvoHydraulic Parts

21335892 — 24V Def Exhaust Fluid Pump 21335892 21335897 0444042108 For Volvo Truck Fh Fm Fmx

This is a 24V DEF exhaust fluid pump, designed to accurately deliver Diesel Exhaust Fluid (DEF) into the exhaust system of Volvo trucks to reduce emissions. It operates under precise control to ensure the correct amount of DEF is injected, meeting stringent environmental regulations, and is built with materials resistant to DEF corrosion, unlike a failing pump that may leak or fail to deliver fluid. Operators might observe a DEF system warning light on the dashboard, reduced engine power (limp mode), or an exhaust system fault code when this pump malfunctions.

24V Def Exhaust Fluid Pump 21335892 21335897 0444042108 For Volvo Truck Fh Fm Fmx – Part No 21335892 – 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 TypeDEF Fluid Pump
MaterialCorrosion-resistant polymers and metals
ApplicationExhaust Fluid Injection System (DEF)
Service LifeReplace as needed based on system diagnostics
CompatibilityVolvo specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The most common initial symptom of a failing DEF pump is a dashboard warning light indicating a DEF system malfunction. This can progress to reduced engine power or 'limp mode' if the DEF level or injection is insufficient. Ultimately, a non-functional DEF pump will prevent the vehicle from operating correctly and may lead to failed emissions inspections.

Installation Tip

Ensure the DEF tank is clean and free of any sediment before installing the new pump to prevent immediate contamination. Verify that all electrical connections are clean and securely fastened.

Service Note

When replacing the DEF pump, it is crucial to inspect the DEF filter and lines for any blockages or signs of crystallization.