Flexalite 31163 Variable Speed Fan Controller Image1

Flexalite Variable Speed Fan Controller

  • Thermostatic

  • Adjustable settings

  • For single or dual fans

Product Details

Flex-a-lite 31163 Variable Speed Fan Controller


Flex-a-lite variable speed controllers attach on or near the electric fan, sensing coolant temperature via a radiator probe or temperature sending unit. They set fan speed from 60 to 100 percent, depending on the built-in thermostat's setting. The thermostats have a range of 160-220 degrees F. The variable speed controllers allow greater control over engine temperature, which helps to reduce charging spikes and current load on the charging system. They keep the fans running for 30 seconds after your vehicle is turned off.



Thermal Switch Style: Adjustable fan control kit

Sending Unit Style: Thread-in

Sending Unit Included: Yes

Sending Unit Thread Size: 1/4 - 18 NPT

Fan Quanitty: Single or Dual

Adjustment Range (F): 160-220 degrees

Relay Included: No

Wiring Harness Included: Yes

Manual Override Switch Included: No

Air Conditioning Relay Included: No


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Vehicle Applications

Years Make Model Trim Chassis Engine Notes