Caliso 22149 Thermal Fan Clutch Engine Cooling Replacement

The Caliso 22149 is a thermal engine cooling fan clutch engineered to meet or exceed OEM specifications. Designed as a direct bolt-on replacement, this fan clutch features an all-aluminum body and CNC-machined construction for precise fitment and reliable long-term performance.

Thermal fan clutches use a bi-metallic spring mechanism to sense engine compartment temperature and automatically engage or disengage the cooling fan as needed. When the engine is cool, the fan remains disengaged to reduce parasitic drag. As temperatures rise, the clutch engages to draw airflow through the radiator and protect the engine from overheating. Once temperatures stabilize, the clutch disengages again, improving fuel efficiency and reducing engine load.

Key Features:

• Thermal fan clutch design meets or exceeds OEM specifications
• CNC machined to exact OE specifications for precise fit
• All-aluminum body for efficient heat dissipation and reduced weight
• Heavy-duty bearing with high-temperature moly grease for extended service life
• Reverse rotation design
• Direct bolt-on replacement — no modifications required

Cross-Reference Part Numbers: 4637 575, 4637 575AB, 5200 7226, 5202 7892, 5202 8428, 5202 8428AB, 5207 9684, 5207 9684AB, 6806 4285AA, 6806 4764AA, 22088612, 22124529

Replacing a worn or failed fan clutch promptly helps prevent engine overheating, excessive fan noise, and reduced A/C performance caused by inadequate airflow through the condenser.