Caliso 22078 Heavy Duty Thermal Fan Clutch

The Caliso 22078 is a heavy duty thermal fan clutch engineered to restore and maintain proper engine cooling performance. Designed as a direct-fit replacement, this fan clutch uses a thermostatic bimetal spring to automatically regulate fan speed based on engine temperature — spinning faster when cooling demand is high and reducing drag when the engine is at normal operating temperature.

This thermal fan clutch shares its specification and interchange profile with industry-standard part number 22078, cross-referencing to Hayden 2779 and select OE Ford part numbers including F57Z-8A616-D and F87Z-8A616-AA.

Key Features:

• Heavy Duty Thermal Design — Automatically modulates fan speed in response to engine heat for optimized cooling and reduced parasitic drag
• Standard (Clockwise) Rotation — Matches OEM rotation direction for direct bolt-on installation
• Powder Coated Steel Construction — Durable finish resists corrosion and withstands underhood heat and vibration
• Dual Flange Bolt Spacing — Accommodates 3" and 3-1/2" flange bolt patterns for broad compatibility
• OE-Spec Dimensions — Flange diameters of 2-3/8" and 2-19/32" with 2" depth, 1" mounting surface to front, and 1" mounting surface to back
• 27° Blade Pitch — Optimized fan blade angle for efficient airflow
• Industry Interchange Printed on Label — Application coverage and clutch specification clearly labeled for easy verification

This replacement fan clutch is built to meet or exceed original equipment specifications, helping prevent engine overheating and protecting other cooling system components such as the water pump. Cross-reference OE numbers: F57Z-8A616-D, F87Z-8A616-AA, 6L5Z-8A616-AA. Interchange: Hayden 2779.