Moroso 63425 Moroso Universal Remote Thermostat Housing - Two -12An Holes on BottomMoroso 63425 Moroso Universal Remote Thermostat Housing Two 12An Holes on Bottom Remote Thermostat Housing, Inlet ports on bottom Allow the street, race, or marine enthusiast to have a thermostat in their cooling system away from the engine itself. This could be if the engine has a blower manifold that does not allow the thermostat to be on the engine itself or if Moroso Part Nos. 63615, 63616, and 63566 water pump adapters for the GM LS series of