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1/8 NPT Thermal Fan Switch 180*
This is the easiest way to activate your electric fan. No risk of poking a hole in your radiator as with the thermocouples that so many kits use. This simply plugs into any 1/8 NPT coolant port and the switch closes at 190* of coolant temp.
We recommend using this switch to provide ground to your fan relay. Easy installation and trouble free activation! It is rated to 30 amps if used on the 12V+ side. However, we do not recommed this for primary voltage direct to the fan!
Do you need a thermal switch for LS? Check out our exclusive thermal switches with the correct metric thread for LS heads!