Keep your 5.0 from overheating with a new 1979-93 Mustang thermostat. These replacement thermostats are offered in 160, 180, and 195 degree options to fit your motor application. Got a thermostat housing that is cracked or corroded? We have the replacement part you need! Finish up your install with a new thermostat gasket to prevent and coolant leaks you might have had, and a new radiator cap to keep your cooling system properly pressurized.