VolvoEngine Parts

21146743 — Fan Hub 20459798 21146743 1675786 For Volvo Engine D12

This fan hub assembly is a critical component of the engine's cooling system, responsible for mounting and driving the engine's cooling fan. It ensures the fan rotates at the appropriate speed to maintain optimal engine temperature, constructed from robust materials to withstand constant rotation and vibration. A failing fan hub may manifest as an audible grinding or rattling noise from the front of the engine, or the fan may wobble excessively, leading to reduced cooling efficiency and potential overheating.

Fan Hub 20459798 21146743 1675786 For Volvo Engine D12 – Part No 21146743 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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

Part TypeFan Hub Assembly
MaterialSteel and aluminum alloy
ApplicationEngine cooling fan drive
Service LifeReplace as needed based on inspection and noise
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a faulty fan hub is often an unusual noise, such as grinding or rattling, emanating from the front of the engine. If ignored, the bearing within the hub can seize, causing the fan to stop rotating or to wobble violently, severely compromising the engine's cooling capacity. This can lead to rapid engine overheating and potential damage to the cylinder head and other critical engine components.

Installation Tip

Before installing the new hub, thoroughly clean the mounting surface on the water pump or fan drive pulley to ensure a flush fit. Avoid using excessive force when tightening the mounting bolts, as this can strip threads or warp the hub.

Service Note

Inspect the cooling fan blades for damage and the fan shroud for proper positioning when replacing the fan hub.