Four Seasons 36940 Engine Cooling Fan Clutch

Four Seasons 36940 Fan Clutch Overview

The Four Seasons 36940 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, 40 mm hex mounting, and a 33 mm pilot for direct-fit service on select Ford trucks and vans.

Compatible With 1992-1996 Ford E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, E-350 Econoline, and E-350 Econoline Club Wagon, plus 1993-1996 Ford F-150, F-250, and F-350 applications that use the specified reverse-rotation setup.

Key Features

• Four Seasons Fan Clutch line, part number 36940
• Standard-duty thermal design for engine-driven cooling fan control
• Reverse rotation (REV) configuration
• Aluminum construction with raw aluminum finish
• Non-electronic clutch type
• 4-bolt / 4-mount-hole design with 5/16-18 hole thread
• 40 mm hex mount diameter and 33 mm pilot diameter
• Meets or exceeds OEM requirements
• Performance rated

Detailed Description

Four Seasons 36940 is an engine cooling fan clutch engineered for vehicles that require a reverse-rotation, standard thermal clutch. The 7.2-inch clutch diameter, 3-inch fan bolt circle, and 1.25-inch distance from clutch to mounting flange support proper fan placement in the cooling system. This part number 36940 is a direct replacement option for select Ford E-Series vans and Ford F-Series trucks, including 1992-1996 Ford E-150 Econoline and 1993-1996 Ford F-150 applications.

This Four Seasons Fan Clutch is built as a standard-duty thermal unit for dependable fan engagement in everyday cooling service. It is a practical choice when replacing a worn clutch on Ford E-250 Econoline, Ford E-350 Econoline Club Wagon, or other listed applications that call for the same reverse-rotation, 40 mm hex, 33 mm pilot configuration.

This part cross-references Gates 22155 for the same application.

What It Helps Address

• Engine overheating caused by a worn or weak fan clutch
• Fan noise from a clutch that no longer engages smoothly
• Reduced airflow at idle or low road speed
• Cooling performance issues on reverse-rotation Ford cooling systems
• Fitment problems when the original clutch uses a 40 mm hex mount and 33 mm pilot

Installation Notes and Tips

Verify reverse rotation, pilot diameter, hex size, and fan bolt circle before installation. Mounting hardware is not included, so reuse or source the correct hardware as needed. Confirm the fan clutch matches the vehicle’s cooling fan orientation and mounting style before final assembly.

Quality Assurance

Four Seasons 36940 is a new replacement fan clutch that meets or exceeds OEM requirements and is performance rated for standard-duty cooling service.