Radiator Caps
The Expansion tanks and Radiator caps (that with the thermostats are considered as the safety valve of all the cooling system) are in fact thought in order to assure that the pressure correct for the cooling system is always maintained while driving, allowing air to escape in case of overpressure. Expansion tanks and Radiator caps complete the range of items belonging to the cooling system, in addition to the radiator and heated hoses (among the widest European ranges), thermostat flanges and rigid coolant hoses.