American Volt Twin Pack 160'f Electric Fan Thermostat 1/8" Npt Liquid Water Coolant Oil Sensor 2 Pack 1/8" Inch NPT Brass Thread-in Thermostat Kit. 160'F Turn-on/145'F Turn-off Temperature. Switch Closes at Temperature Passing Power to the Fan. Measures Any Fluid Temperature, Including Oil and Coolant. Engine Block, Radiator, Cylinder Head, Manifold, Water Outlet etc.