These in line thermal switch assemblies from Susa are designed to installed directly into an Aeroquip type external oil line to provide switching for an electric fan or transmission / differential oil pump.Fits to Aeroquip style oil hoses in sizes -6, -8, -10 or -12Choice of switching temperatureIdeal for switching on cooling fans or electric oil pumpsThe thermal switch assemblies feature an AN (JIC) male fitting on one end and a same size AN (JIC) female fitting on the other. Available in 3 different temperature switching options: 180 Degrees F, 190 degrees F or 200 degrees F.