The Derale premium in-line fan control thermostat installs directly in a fluid cooler line and switches an electric fan on and off based on fluid temperature. It turns the fan on at 180°F and off at 165°F, helping hold engine oil or transmission fluid in a steady operating range. The unit uses an anodized aluminum swivel housing so it can be clocked for a clean installation, with -10AN male and -10AN female ports for the fluid line.
Specifications:
- Type: in-line fluid fan control thermostat
- Turn-on temperature: 180°F
- Turn-off temperature: 165°F
- Ports: -10AN male x -10AN female
- Housing: anodized aluminum, swivel
- Function: switches an electric fan by fluid temperature
- Part number: 35022
FAQ
What does the Derale 35022 thermostat do?
It mounts in the fluid line and turns an electric cooling fan on at 180°F and off at 165°F based on the fluid temperature flowing through it.
What port size does it use?
It has -10AN male and -10AN female ports.
Where does it install?
It installs in-line in a fluid cooler line, and the swivel housing lets you position it cleanly.

