Four Seasons 46101 Engine Cooling Fan Clutch

Four Seasons 46101 Fan Clutch Overview

The Four Seasons 46101 fan clutch is a standard-duty thermal engine cooling fan clutch built with an aluminum body and raw aluminum finish. It is a direct-fit cooling system component for 2001-2005 Audi Allroad Quattro models with standard rotation thermal fan clutch applications.

As part of the Four Seasons Fan Clutch line, this unit is built for OE-style cooling fan control and meets or exceeds OEM requirements for the listed application. The Four Seasons 46101 is a practical replacement choice when servicing a worn thermal fan clutch on an Audi Allroad Quattro.

Key Features

• Thermal fan clutch for engine cooling fan operation
• Standard-duty style for everyday cooling system service
• Aluminum construction with raw aluminum color
• Threaded shaft mounting type with 3 bolt holes and 3 mounting holes
• Meets or exceeds OEM specifications for the listed fitment
• Performance rated for application-specific cooling control
• Direct interchange reference: Hayden 6251

Detailed Product Description

Four Seasons 46101 is an engine cooling fan clutch designed for standard rotation thermal operation. It uses a threaded shaft mounting design, a 1.25 in. mount diameter, and a 5.79 in. fan bolt circle to match the specified cooling fan setup. Overall dimensions include a 6.3 in. maximum clutch diameter and 2.29 in. overall height, supporting a precise replacement for the original-style assembly.

This part cross-references Hayden 6251 for the same application. It is also listed under the Four Seasons Fan Clutch product line and is intended for 2001-2005 Audi Allroad Quattro models. If you are searching for a 2001 Audi Allroad Quattro fan clutch, 2005 Audi Allroad Quattro thermal fan clutch, or a Four Seasons 46101 cooling fan clutch replacement, this part matches the confirmed fitment data.

What This Part Helps Address

• Cooling fan engagement that is delayed or inconsistent
• Excessive engine temperature during low-speed driving or idle
• Fan clutch noise caused by wear in the thermal unit
• Reduced airflow through the radiator and condenser assembly
• Loss of proper fan speed control in the cooling system

Installation Notes and Tips

Verify the threaded shaft mounting style, 3-bolt pattern, and fan bolt circle before installation. Confirm the rotation is standard (STD) and compare the mount diameter, pilot diameter, and pilot depth to the original part on the vehicle. Mounting hardware is not included, so reuse or source the required hardware separately if needed.

For best results, inspect the cooling fan, water pump, belts, and surrounding components during replacement. This helps ensure the new fan clutch operates correctly in the cooling system and supports proper airflow on the Audi Allroad Quattro.

Quality Assurance

Four Seasons lists this fan clutch as new, performance rated, and meeting or exceeding OEM requirements for the specified application. The aluminum construction and thermal design support OE-style replacement service for the confirmed fitment range.