Caliso 22627 Thermal Truck Drive Fan Clutch Engine Cooling

The Caliso 22627 is a thermal truck drive fan clutch designed as a direct-fit OEM replacement for engine cooling systems. The thermal fan clutch regulates engine temperature by automatically engaging and disengaging the engine cooling fan based on heat from the radiator — reducing parasitic drag and improving efficiency when full cooling capacity is not needed.

Key Features:

• Thermal actuation — senses radiator heat to engage the fan only when needed, optimizing fuel efficiency and reducing engine noise at highway speeds
• Counter-clockwise rotation — engineered to match OEM fan rotation direction for correct airflow
• High-load bearings — increase durability and improve wear resistance for extended service life
• Improved shaft design — provides greater strength and enhanced load capacity under demanding conditions
• CNC-machined mounting surfaces — tapped and drilled to prevent fluid leaks and ensure proper fitment with mating components
• Full surface contact on all interference fits with staked end for anti-rotation
• Meets or exceeds OEM specifications — engineered and tested as a reliable replacement for the original equipment fan clutch
• Includes fan mounting hardware

The 22627 thermal fan clutch is a heavy-duty engine cooling component built to restore proper cooling system function. Its precision-engineered construction ensures a straightforward installation process and long-term reliability under the stresses of daily truck use.