The Derale Adjustable Electric Fan Controller is a mechanical controller that switches an electric cooling fan on and off based on coolant temperature. The turn-on point is adjustable from 32 to 240 degrees F, and the fan turns off automatically at 10 degrees below the selected turn-on temperature. It uses a capillary-tube radiator hose probe that installs in the radiator inlet tube, and it operates a single fan or two fans with a combined draw of up to 16 amps.
Specifications:
- Type: Adjustable mechanical electric fan controller
- Turn-on temperature: Adjustable 32 to 240 degrees F
- Turn-off temperature: 10 degrees F below the turn-on setting
- Probe: Capillary-tube radiator hose probe (installs in radiator inlet tube)
- Capacity: Up to 16 amps (one fan, or two fans totaling 16 amps or less)
- Part number: 16769
FAQ
What does the Derale 16769 controller do?
It turns an electric cooling fan on and off by coolant temperature, with an adjustable turn-on point.
What temperature range does it cover?
The turn-on temperature adjusts from 32 to 240 degrees F, and the fan turns off 10 degrees below that setting.
How does the probe install?
It uses a capillary-tube radiator hose probe that inserts into the radiator inlet tube.
How many fans can it run?
It operates a single fan or two fans with a combined draw of up to 16 amps.

