6 Port Combination Valve

This combination valve/thermostat provides the option of isolating your desired coolant circuit for a faster engine pre-heat or interior heat. For example if you want to heat up the vehicle interior first so you have a warm cab and deforested windows you would hook it up so the primary circuit is the cab and the engine is secondary. As the water heats up it will warm the cab circuit first. Then as the water temp reaches 150° the thermostat begins to open and allows the engine to be warmed.