Four Seasons 36974 Engine Cooling Fan Clutch

Engine Cooling Fan Clutch for Ford Trucks

Four Seasons 36974 is a standard-duty engine cooling fan clutch built for reverse-rotation applications. It is a new, non-electronic thermal fan clutch with an aluminum body, made for direct replacement service on select Ford F-150, F-250, F-350, Bronco, and Econoline models.

Use this Four Seasons Fan Clutch line part when you need a replacement that matches the original reverse-rotation cooling fan setup on 1987-1996 Ford truck and van applications. The 36974 fan clutch is performance rated and meets or exceeds OEM requirements for the listed vehicles.

Key Features

• Four Seasons Fan Clutch, part number 36974
• Standard-duty thermal fan clutch design
• Reverse rotation (REV) for the correct fan direction
• Aluminum construction with raw aluminum finish
• Non-electronic clutch design
• 4-bolt / 4-mount-hole configuration
• 36 mm mount diameter with 30 mm pilot diameter
• 7.2 in. clutch diameter and 2.83 in. overall height
• Meets or exceeds OEM specifications
• New, performance-rated replacement

Detailed Description

Four Seasons 36974 is an engine cooling fan clutch designed for Ford applications that use a reverse-rotation, standard-duty thermal setup. The aluminum housing helps keep the unit lightweight while maintaining the fitment and mounting dimensions needed for service replacement. With a 36 mm hex mount, 30 mm pilot, 3 in. fan bolt circle, and 5/16-18 hole thread, this fan clutch is built around the listed OE-style mounting pattern.

This part cross-references Gates 22161 and Dorman - HELP 47237 for the same application. It is also listed under Four Seasons Fan Clutch line references for Ford cooling system service, including 36974.

Compatible With 1987-1992 Ford Bronco, 1987-1992 Ford F-150, 1987-1992 Ford F-250, 1987-1992 Ford F-350, 1987-1991 Ford E-150 Econoline, 1987-1991 Ford E-150 Econoline Club Wagon, 1987-1991 Ford E-250 Econoline, 1987-1991 Ford E-250 Econoline Club Wagon, 1987-1991 Ford E-350 Econoline, 1987-1991 Ford E-350 Econoline Club Wagon, and 1993-1996 Ford F-150/F-250/F-350 reverse-rotation thermal fan clutch applications.

Common Problems This Part Addresses

• Engine cooling fan not engaging at the correct speed
• Excessive fan noise from a worn clutch
• Overheating caused by reduced airflow through the radiator
• Loose or inconsistent fan operation on reverse-rotation systems
• Fitment issues when replacing an OE-style thermal fan clutch

Installation Notes and Tips

Verify reverse rotation, 36 mm hex mount, 30 mm pilot, and fan bolt circle dimensions before installation. Mounting hardware is not included, so reuse or source the correct hardware as needed. Confirm the vehicle’s cooling fan setup matches the listed thermal, standard-duty configuration before replacing the clutch.

Quality Assurance

Four Seasons 36974 is a new replacement fan clutch that meets or exceeds OEM requirements and is performance rated for the listed Ford applications. The Four Seasons Fan Clutch line is built for direct-fit cooling system service on vehicles such as the Ford F-150, F-250, F-350, Bronco, and Econoline.