Four Seasons 36776 Engine Cooling Fan Clutch

Four Seasons 36776 Fan Clutch Overview

Four Seasons 36776 is a standard duty thermal engine cooling fan clutch built for reverse rotation applications. It uses an aluminum construction, a flange mount, and a non-electronic thermal design to help maintain proper fan engagement in the cooling system.

Compatible With 2001-2005 Toyota Sequoia, 2003-2005 Toyota Tundra, 2003-2005 Toyota 4Runner, and 2003-2005 Lexus GX470 applications listed below, this Four Seasons fan clutch is a direct-fit cooling service part for select import trucks and SUVs.

Key Features

• Four Seasons Fan Clutch, part number 36776
• Thermal, standard duty design for mechanical fan control
• Reverse rotation configuration for listed Toyota and Lexus applications
• Aluminum body with raw aluminum finish
• Flange mounting style with 4 bolt holes and 4 mounting holes
• Meets or exceeds OEM requirements
• Performance rated and new, not remanufactured
• Non-electronic fan clutch for conventional cooling systems

Product Details

The Four Seasons Fan Clutch line focuses on replacement cooling components for vehicles that use a mechanically driven radiator fan. Part number 36776 follows the standard duty thermal format and is built with a 6.65-inch clutch diameter, 5.35-inch fan bolt circle, 3.63-inch mount diameter, and 2.59-inch distance from the clutch to the mounting flange. It also uses an M6 x 1.0 hole thread pattern and a 0.63-inch pilot diameter for the specified fitments.

This part cross-references Gates 22184 for the same application. It is listed for 2003-2004 Toyota Tundra, 2001-2004 Toyota Sequoia, 2003-2004 Toyota 4Runner, and 2003-2004 Lexus GX470, with additional 2005 coverage on select models as noted in the fitment data. If you are searching for a Toyota Tundra fan clutch, Toyota Sequoia cooling fan clutch, or Lexus GX470 reverse rotation fan clutch, Four Seasons 36776 is the cataloged replacement.

Common Cooling Issues It May Address

• Engine temperature rise at idle or low road speed
• Fan engagement problems caused by a worn thermal clutch
• Reduced airflow through the radiator and condenser
• Cooling fan noise from a failing mechanical clutch
• Inconsistent cooling performance in stop-and-go driving

Installation Notes and Tips

Verify reverse rotation, flange style, bolt pattern, and pilot dimensions before installation. Compare the existing fan clutch to the listed measurements, including overall height, clutch diameter, and fan bolt circle, to confirm proper fitment on your Toyota 4Runner, Toyota Tundra, Toyota Sequoia, or Lexus GX470.

Mounting hardware is not included, so reuse or source the correct hardware as needed for the application. Inspect the fan blades, water pump area, and surrounding cooling components during service to ensure the replacement clutch operates correctly after installation.

Quality Assurance

Four Seasons lists this fan clutch as new, performance rated, and meeting or exceeding OEM requirements. The aluminum construction and thermal standard duty design reflect a direct replacement approach for select import cooling systems.