Caliso 22620 Thermal Truck Drive Fan Clutch

The Caliso 22620 is a thermal truck drive fan clutch engineered to deliver reliable engine cooling performance in demanding applications. This heavy-duty replacement fan clutch is designed to meet or exceed original equipment specifications, providing an accurate fit and consistent operation over the long term.

The thermal fan clutch works by automatically engaging and disengaging the cooling fan based on engine temperature. A silicone-based fluid and bi-metallic spring mechanism control clutch engagement, spinning the fan at higher speeds when engine heat demands it and allowing it to slip at lower loads to reduce parasitic drag on the engine.

Key Features:

• Thermal engagement — automatically modulates fan speed in response to engine temperature for efficient cooling
• Counter-clockwise rotation — correct rotation direction for specified applications
• Coil spring design — reliable thermal response mechanism for consistent performance
• Thread diameter: 5/16-18
• Flange diameter: 1.44 in
• Bolt hole quantity: 4
• Bolt circle diameter: 3.25 in
• Hardware included: 4 bolts and 4 washers
• Designed to meet or exceed OEM cooling specifications

Cross-Reference Part Numbers:

• ACDelco: 1540335
• Advance/Carquest: 77686
• Chrysler: 52028789AA, 52028789AB, 52028789AC, 52028789AD, 52028789AF, 52028790AB, 52028790AC, 52028790AD, 52028790AE, 52029876AA, 52029977AA, 52029977AB, 52029977AC
• Compressor Works: 922901
• Four Seasons: 46020
• GM: 19190176
• GMB: 9202250
• Hayden: 2901
• Imperial: 215144
• NAPA: 271622
• US Motor Works: 22620

Warning: This product contains a chemical known to the State of California to cause cancer and reproductive harm.