Robertshaw High Flow 180 Degree Thermostat

These Flow Kooler Robertshaw high flow thermostats open further than most thermostats complimenting our high-flow Flow Kooler water pumps. They are designed to resist large variations in coolant pressures that can occur at high rpm. Under these conditions, coolant temperature and pressure fight for control of the thermostat, keeping it from opening at its designed temperature. These balanced, high performance thermostats feature brass-and-copper construction, and will open at the right temperature, regardless of engine rpm.