OE/OEM Part Number 13320 radiator,new,cooling radiator,air radiator. Superseded Part Number 13320 radiator,RAD13320,CU13320,DPI13320,Aluminum. 2013-2017 Lincoln MKZ. 2013-2018 Ford Fusion. It is part of the engine's cooling system, which also includes a liquid coolant, hoses to circulate the coolant, a fan, and a thermostat that monitors the coolant temperature.