VolvoEngine Parts

20405899 Thrust Washer — Volvo FH12 FH16

This is a thrust washer, a critical component in engine assemblies designed to absorb axial forces and maintain proper spacing between rotating parts. It is precision-machined to meet strict tolerances, ensuring smooth operation and preventing premature wear on crankshafts and bearings, unlike a worn or broken washer. Operators may notice increased engine noise, particularly knocking sounds, or oil pressure issues when this washer begins to fail.

Thrust Washer – Part No 20405899 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine 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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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

Part TypeThrust Washer
MaterialSteel alloy with bearing material overlay
ApplicationEngine crankshaft and bearing assembly
Service LifeReplace during engine overhaul or as needed
CompatibilityVolvo FH12, FH16, FH 420, FH 460, FH 500 specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing thrust washer is often a distinct knocking sound from the engine, especially when revving. If ignored, this can lead to excessive crankshaft end play, causing damage to other engine components like pistons and connecting rods. Continued operation risks severe internal engine damage and potential seizure.

Installation Tip

Ensure all crankshaft thrust surfaces and the washer grooves are meticulously cleaned before installation. Always install new thrust washers in sets and verify crankshaft end play according to specifications.

Service Note

Inspect the crankshaft journals and main/rod bearings for wear or damage when replacing thrust washers.