Caliso 22061 Thermal Fan Clutch Replacement

The Caliso 22061 Thermal Fan Clutch is a direct-replacement engine cooling fan clutch designed to restore proper thermal management to belt-driven fan systems. This thermal-style clutch uses a bi-metallic thermostatic coil to continuously monitor under-hood air temperature and modulate fan engagement accordingly — providing airflow precisely when your engine needs it most.

Unlike non-thermal (torque-limiting) fan clutches that react only to shaft speed, a thermal fan clutch intelligently engages and disengages based on actual heat load. When under-hood temperatures rise, the bi-metal spring expands, opening an internal valve that allows silicone fluid into the drive chamber, increasing fan speed to boost cooling. As temperatures drop, the valve closes, reducing fan drag and freeing up engine power.

Key Features:

• Thermal engagement via bi-metallic coil spring for temperature-responsive fan control
• Silicone fluid coupling for smooth, variable fan speed modulation
• Replaces worn or failed OEM-style thermal fan clutches
• Helps prevent engine overheating during low-speed or high-load operation
• Reduces unnecessary parasitic drag on the engine at highway speeds for improved efficiency
• Direct-fit replacement design for straightforward installation

A failing fan clutch can cause engine overheating, excessive fan noise, poor A/C condenser airflow, and reduced fuel economy. The Caliso 22061 restores OEM-style cooling performance and is an ideal replacement when servicing the water pump or cooling system.