Four Seasons 36997 Engine Cooling Fan Clutch

Four Seasons 36997 Fan Clutch for Volvo Cooling Systems

The Four Seasons 36997 engine cooling fan clutch is a standard-duty thermal replacement built for import cooling applications that use a 5" and 6" fan clutch design. It features an aluminum body, non-electronic operation, and a flange mount layout for direct service on select Volvo models.

Compatible with 1987-1990 Volvo 760 and 1987-1990 Volvo 780, this Four Seasons Fan Clutch line part is engineered to meet or exceed OEM requirements for fit and function. If you are searching for a Volvo 760 fan clutch or Volvo 780 thermal fan clutch, part number 36997 is a direct-reference option for the listed applications.

Key Features

• Thermal, standard-duty engine cooling fan clutch
• Aluminum construction with raw aluminum finish
• Non-electronic design for mechanical cooling control
• Flange mounting style with 4 bolt holes and 4 mounting holes
• Standard rotation configuration
• Meets or exceeds OEM specifications
• Performance rated for service replacement use
• Designed for A - 5" & 6" import fan clutch applications

Product Details

Four Seasons 36997 is part of the Fan Clutch product line, a cooling-system category focused on thermal fan clutch replacement for import vehicles. This unit uses a 6.65-inch maximum diameter, 5.35-inch fan bolt circle, 2.73-inch mount diameter, and 2.29-inch distance from clutch to mounting flange. The standard rotation, thermal actuation, and flange mount design make it a practical replacement for vehicles that rely on engine-driven fan control to manage coolant temperature.

This part cross-references Gates 22031 and Anchor 2659 for the same application. For buyers comparing Volvo 760 fan clutch replacement options or Volvo 780 cooling fan clutch service parts, Four Seasons 36997 provides a direct-fit reference within the listed fitment.

Common Cooling Issues This Part May Address

• Engine cooling fan not engaging at the proper temperature
• Excessive fan noise from a worn thermal clutch
• Reduced airflow through the radiator at idle or low speed
• Cooling system temperature fluctuation during stop-and-go driving
• Fan clutch drag or inconsistent fan speed response

Installation Notes and Tips

Verify the fan bolt circle, mount diameter, rotation, and flange style before installation. This part uses M6 x 1.0 hole threading and does not include mounting hardware. Confirm clearance around the radiator, shroud, and fan assembly, and inspect the fan blades and related cooling components during service. For best results, replace the fan clutch only after confirming the cooling system is in proper working order.

Fits 1987-1990 Volvo 760, N/A. Fits 1987-1990 Volvo 780, N/A.

Quality Assurance

Four Seasons 36997 is a new, performance-rated replacement fan clutch that meets or exceeds OEM specifications for the listed applications. The Four Seasons Fan Clutch line is built for direct replacement service in standard thermal cooling systems.