Four Seasons 36993 Engine Cooling Fan Clutch

Engine Cooling Fan Clutch for Ford and Mazda

Four Seasons Fan Clutch 36993 is a standard-duty engine cooling fan clutch built for reverse-rotation applications. It is a new, non-electronic thermal clutch with an aluminum body, performance-rated construction, and OEM-level fitment for select Ford Ranger, Ford Aerostar, Ford Explorer, Mazda B4000, and Mazda Navajo applications.

Use this Four Seasons 36993 fan clutch when you need a direct replacement for reverse-rotation cooling systems that rely on thermal fan engagement to help manage engine temperature.

Key Features

• Brand: Four Seasons Fan Clutch
• Part Number: 36993
• Standard-duty thermal fan clutch design
• Reverse rotation (REV) application
• Aluminum construction with raw aluminum finish
• Non-electronic clutch type
• Meets or exceeds OEM requirements
• Performance rated and new, not remanufactured
• 4-bolt / 4-mount-hole configuration
• Fan bolt circle: 3.25 in. (82.6 mm)
• Overall diameter: 7.2 in. (182.9 mm)

Detailed Description

Four Seasons 36993 is an engine cooling fan clutch engineered for reverse-rotation, standard-duty thermal applications. The aluminum housing and standard-duty design support consistent fan engagement in vehicles that use a thermal clutch to regulate airflow through the radiator and cooling stack. With a 7.2-inch maximum diameter, 1.25-inch clutch-to-mounting-flange distance, and 4-bolt mounting pattern, this unit is built for the specified Ford and Mazda fitments. This part cross-references Gates 22167 for the same application. Fits 1990-2003 Ford Ranger, Fits 1990-1997 Ford Aerostar, Fits 1991-1994 Ford Explorer, Fits 1994-1997 Mazda B4000, and Fits 1991-1994 Mazda Navajo. Four Seasons 36993 is a direct-fit cooling fan clutch for reverse-rotation systems where thermal fan control is required.

What It Helps Address

• Engine overheating caused by a worn or weak fan clutch
• Reduced cooling fan engagement at idle or low speed
• Cooling system noise from a failing clutch assembly
• Inconsistent airflow through the radiator and condenser
• Loss of thermal fan control in reverse-rotation applications

Installation Notes and Tips

Verify reverse-rotation orientation, bolt pattern, pilot dimensions, and fan bolt circle before installation. This unit uses a hex mounting type and does not include mounting hardware. Confirm the vehicle’s cooling package and engine-specific application details for Ford Ranger, Ford Aerostar, Ford Explorer, Mazda B4000, or Mazda Navajo before replacing the clutch.

Quality Assurance

Four Seasons identifies this fan clutch as meeting or exceeding OEM requirements and rates it for performance use. The part is new and non-electronic, with a standard-duty thermal design intended for the listed applications.