20903729 Fan Hub | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta fan hub that supports and locates the cooling fan or fan pulley on the engine. The hub's mounting faces, pilot diameter and bearing/shaft relationship maintain concentric rotation and correct fan clearance.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD750VE
• Volvo Penta TAD760VE

• Engine Family: TAD

⚙️ Key Features

• Genuine Volvo Penta Cooling Fan Hub - part number 20903729
• Application-specific fan and pulley mounting pattern
• Pilot diameter controls fan concentricity
• Maintains the designed fan offset and belt alignment
• Carries continuous radial and airflow loading
• Balanced geometry reduces vibration
• Inspect bearing support, fasteners and fan condition during installation
• Engine type: Application-specific Volvo Penta engine rotating and drive system

🔌 Function

The hub transfers rotation to the cooling fan and supports it at the specified distance from the radiator, shroud or engine. Accurate alignment prevents vibration and ensures the fan operates efficiently.

⚠️ Common Signs of Failure

• Fan wobble or vibration
• Loose mounting fasteners or fretting
• Cracked hub or damaged pilot
• Pulley/belt alignment is incorrect
• Bearing noise or excessive radial play in the supporting assembly

🛠️ Service Notes

• Check the hub bearing before you fit anything to it — turn it by hand feeling for roughness, drag or play, and look for grease or oil escaping past the seal
• Renew the hub as an assembly rather than nursing a rough bearing; a seizing fan hub will strip the belt and can throw the fan
• Inspect the fan, its fasteners and the belt drive whenever the hub is disturbed, and check the pulleys line up
• Tighten hub and fan fasteners to the figures in the workshop manual for your engine, and check the fan turns true and clears the shroud, hoses and wiring right round
• After the first running period, recheck the fasteners and belt tension and feel the hub for unusual heat or noise

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE20903729

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging