Four Seasons Thermal Fan Clutch

The Four Seasons Thermal Fan Clutch is an engine cooling fan clutch (also called a thermal fan clutch or radiator fan clutch). It controls how the engine cooling fan runs, so airflow across the radiator matches engine temperature.

Key Features:

• Temperature-responsive operation: A thermal, bi-metal sensing design engages the fan more firmly when the engine runs hot, and lets it slip when the engine is cool.
• Fluid-coupled design: A silicone-based fluid coupling transfers drive from the water pump shaft or pulley to the fan blade.
• Better efficiency: Reducing fan drag at lower temperatures can cut engine load and fan noise.
• Cooling system support: Proper fan engagement at high temperatures, such as in traffic, when towing or at idle, helps prevent overheating.
• Aftermarket replacement: Four Seasons builds its fan clutches as direct replacements for the original part.

A worn or failing fan clutch can cause overheating, a constantly roaring fan, or poor air conditioning performance at idle. Replacing it restores correct cooling fan operation. Choose the specific part number in this product line that matches your application.