TSP's electric fan controller kit is exactly what you need to configure your cooling fan the way you want. It....
TSP's electric fan controller kit is exactly what you need to configure your cooling fan the way you want. It is adjustable from 150° F to 250°F and features an A/C override circuit. Available with black or red relays, it's easy to match the look of your engine bay.
How to Adjust
1. Remove rubber plug. 2. Turn adjustment screw counter clockwise to lower starting temp. 3. Turn adjustment screw clock wise to raise starting temp. 4. Replace rubber plug.