Four Seasons 36972 Engine Cooling Fan Clutch

Four Seasons 36972 Fan Clutch Overview

The Four Seasons 36972 is a standard-duty thermal engine cooling fan clutch built for direct-fit service on select Ford and Mazda applications. It uses an aluminum construction, standard rotation, and a hex mounting type to support consistent fan engagement in everyday cooling system operation.

Compatible With 1986-1997 Ford Aerostar, 1991-1997 Ford Ranger, 1996-1997 Ford F-100 Ranger, and 1994-2008 Mazda B3000, this Four Seasons fan clutch is a practical replacement for vehicles with standard cooling setups. The 36972 part number is also a useful reference when searching for a thermal fan clutch for these applications.

Key Features

• Four Seasons Fan Clutch, part number 36972
• Standard-duty thermal design with non-electronic operation
• Aluminum construction with raw aluminum finish
• Standard rotation for listed Ford and Mazda applications
• Hex mounting type with 4-bolt, 4-hole pattern
• Meets or exceeds OEM requirements
• Performance rated for replacement cooling service
• Direct-fit dimensions: 5.99 in. clutch diameter, 4.34 in. overall height

Product Details

This Four Seasons Fan Clutch line focuses on replacement cooling components for vehicles that rely on mechanical fan engagement. The 36972 thermal fan clutch is specified with a 5.99-inch clutch diameter, 3.25-inch fan bolt circle, 1.44-inch mount diameter, and 1.18-inch pilot diameter, helping match the original mounting geometry on supported Ford Ranger, Ford Aerostar, Ford F-100 Ranger, and Mazda B3000 applications. The aluminum body and standard-duty construction make it a straightforward choice for restoring proper fan operation in standard cooling systems.

This part cross-references Gates 21064 for the same application.

Common Cooling Issues It Can Address

• Engine cooling fan not engaging at the correct time
• Excessive fan noise from a worn clutch assembly
• Reduced airflow through the radiator at idle or low speed
• Cooling performance loss on Ford Ranger and Mazda B3000 applications
• Thermal fan clutch wear in standard-duty cooling systems

Installation Notes

Verify standard rotation, mounting style, pilot dimensions, and bolt pattern before installation. Mounting hardware is not included, so reuse or source the correct hardware separately as needed. Confirm the vehicle uses a standard cooling setup and compare the existing clutch dimensions to the listed specifications before replacing the original unit.

Quality Assurance

Four Seasons lists this fan clutch as meeting or exceeding OEM requirements and performance rated for replacement use. The 36972 is a new part built for direct replacement in the listed Ford and Mazda applications.