20460306 Fan Clutch | Genuine Volvo Penta Part

🔧 Product Description

Non-controlled viscous fan clutch with flange-1 geometry and four M8 x 1.25 mounting points, used on documented fan-clutch arrangements 6 and 7.

🚤 Compatibility

Typically suits:

• Volvo Penta TD420VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD720VE
• Volvo Penta TAD721VE
• Volvo Penta TAD722VE
• Volvo Penta TAD750VE
• Volvo Penta TAD420VE
• Volvo Penta TAD520VE
• Volvo Penta TAD760VE

• Engine Family: TD, TAD
• HP Range: Approximately 174-280 HP
• Year Range: Approximately 1998 - 2006

⚙️ Key Features

• Genuine Volvo Penta viscous fan clutch - flange 1 / four-bolt
• Designed for the cooling-fan viscous drive
• Direct service replacement for Volvo Penta part number 20460306
• Non-controlled viscous fan clutch with flange-1 geometry and four M8 x 1.25 mounting points, used on documented fan-clutch arrangements 6 and 7
• Flange 1; four M8 x 1.25 fan mounting points
• Engine type: Four- or six-cylinder turbocharged industrial diesel, model dependent

🔌 Function

Varies fan drive according to temperature and internal viscous coupling behaviour so radiator airflow increases when cooling demand rises.

⚠️ Common Signs of Failure

• Engine temperature rises under load or at low vehicle speed
• Fan remains fully engaged, causing excessive noise and power loss
• Fan freewheels when hot or has little resistance
• Silicone-fluid leakage or oily staining around the hub
• Bearing play, wobble, vibration or contact between the fan and shroud

🛠️ Service Notes

• Inspect fan blades, hub bearings, belt tension and radiator airflow before condemning the clutch
• Store and handle the viscous clutch in the orientation specified for the component and tighten the fan evenly

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20460305 - temperature-controlled fan clutch, flange layout 2
• 20460307 - temperature-controlled fan hub, flange layout 1
• 20460308 - 63.5mm and 107.5mm adapter variants
• 20460309 - M10 x 45 adapter screw
• 20460319 - fan mounting washer
• 990940 - fan mounting flange nut
• 20850090 - later adapter and pulley references on TAD650VE/TAD660VE installations

Other-Brand OEM Numbers

• VOE20460306 - Volvo Construction Equipment prefixed number format

📦 Condition

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