VolvoEngine Parts

20524754 Pulley — Volvo FH12 FH16

This pulley is a component of the engine's accessory drive system, responsible for redirecting belt tension and driving other engine-mounted components like the alternator or air conditioning compressor. It is constructed from durable steel or cast iron with a precisely machined groove to ensure smooth belt operation and longevity. A worn or damaged pulley may present as a high-pitched squealing noise from the engine bay, erratic belt movement, or a complete loss of accessory function.

Pulley – Part No 20524754 – 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 TypeAccessory Drive Pulley
MaterialSteel or cast iron
ApplicationEngine accessory drive system
Service LifeInspect at every service interval, replace as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing pulley often begins with an audible squealing or grinding noise from the engine bay, especially under load. The belt may appear to be slipping or vibrating erratically. If the pulley seizes or the bearing fails completely, the driven accessory will stop functioning, potentially leading to overheating or loss of power steering.

Installation Tip

Always check the condition of the belt and tensioner before installing a new pulley. Avoid using excessive force when mounting the pulley to the shaft, as this can damage the bearing or shaft.

Service Note

Inspect the drive belt and tensioner assembly for wear and proper function whenever a pulley is replaced.