Caliso 22601 Severe Duty Thermal Truck Drive Fan Clutch

The Caliso 22601 is a severe duty thermal truck drive fan clutch engineered to meet or exceed original equipment specifications. This standard-rotation fan drive unit uses a thermally activated clutch mechanism to modulate cooling fan engagement based on engine temperature, helping maintain optimal operating temps while reducing unnecessary parasitic load on the engine.

When engine heat rises, the thermal spring engages the clutch, spinning the fan at increased speed to draw airflow through the radiator. When temperatures normalize, the clutch disengages partially, reducing fan drag and improving fuel efficiency.

Key Features:

• Severe duty thermal fan clutch design for demanding truck applications
• Standard rotation configuration
• Meets or exceeds OEM performance, fit, and appearance standards
• Precision-engineered for reliable, out-of-the-box installation
• Helps prevent engine overheating while reducing parasitic engine load
• Durable construction built for extended service life

Cross-Reference Part Numbers:

• Hayden: 2830, 2833
• Ford OEM: E5TZ-8A616-C, E5TZ-8A616-G, E8TZ-8A616-D, E9TZ-8A616-A, F2UZ-8A616-H
• Derale: 22601
• US Motor Works: 22601
• Four Seasons: 36723
• Torqflo: 922833

The Caliso 22601 thermal truck drive fan clutch is a direct-replacement unit suited for Ford light-duty and medium-duty truck and van applications requiring a severe duty thermal fan drive solution.