Caliso 22139 Heavy Duty Thermal Reverse Rotation Fan Clutch

The Caliso 22139 is a heavy-duty thermal fan clutch engineered to deliver reliable engine cooling performance that meets or exceeds OEM specifications. Featuring a reverse rotation design, this fan clutch is built with a precision CNC-machined aluminum body for superior heat dissipation and long-term durability.

The thermal engagement mechanism automatically modulates fan speed based on engine temperature — spinning the fan at a higher percentage of shaft speed when cooling demand is high, and reducing engagement when the engine is running cool. This improves fuel economy, reduces unnecessary fan noise, and helps the engine reach operating temperature more quickly.

Key Features:

• Heavy-duty thermal operation — engages and disengages based on engine temperature
• Reverse rotation design for correct application fitment
• CNC-machined aluminum body for efficient heat dissipation and precise tolerances
• High-quality, heavy-duty bearing with high-temperature moly grease lubrication
• Meets or exceeds OEM specifications for direct-fit replacement
• Cross-reference: 22139

The Caliso 22139 thermal fan clutch is a direct OEM-style replacement that restores proper cooling system function and helps prevent engine overheating. It is a drop-in solution designed for straightforward installation without modification.