VolvoFilters

20869391 Cover, Water Seperater — Volvo FMX FE Series trucks — FH400

This is a water separator cover, a critical component of the fuel filtration system for Volvo trucks, designed to prevent water from entering the engine. It is manufactured to meet stringent OEM standards, ensuring a reliable seal and effective water separation compared to a damaged or corroded cover. Operators might notice the 'check engine' light illuminating, rough engine running, or increased exhaust smoke if this cover leaks or fails to seal properly.

Cover, Water Seperater – Part No 20869391 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryFilters
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

Never run an engine without a filter — even briefly causes abrasive damage. Pre-fill fuel filters with clean fuel before fitting to reduce prime time. Replace O-rings on filter housings every second service. Record change dates on filter housing.

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

Part TypeWater Separator Cover
MaterialDurable plastic composite
ApplicationFuel filter water separator housing
Service LifeReplace if damaged or leaking
CompatibilityVolvo specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a faulty water separator cover may be a fuel leak or the illumination of a dashboard warning light related to the fuel system. If the seal fails completely, water can enter the fuel system, leading to engine misfires and potential damage to fuel injectors. The worst consequence is severe engine damage due to contaminated fuel.

Installation Tip

Ensure the mounting surface on the fuel filter housing is perfectly clean and free of any old gasket material before attaching the new cover. Do not overtighten the fasteners, as this can crack the plastic cover or strip the threads.

Service Note

Inspect the fuel filter element and the drain valve for proper function and signs of wear when replacing the water separator cover.