Liquid cooled heatsink for the 1238 series of Curtis AC controllers. 3/4" aluminum, 1/2" inlet and outlet, solid silicone rubber high temperature gasket included.
By utilizing a 12 volt electric pump that can deliver 2 to 3 gallons per minute, and use either the OEM radiator or a small aftermarket oil cooler, the controller will run cooler compared to an aluminum heat sink.
Included Components