Description International ProStar Receiver Drier Replaces OEM: 3666273C1 or 3666273-C1 Description: Receiver Drier Application: Navistar Trucks Diameter: 3 1/2″ Inlet Type: Bead Fitting Inlet Size: #6 Outlet Type: Navistar Pad Outlet Size: Pad Type Material: Aluminum Refrigerant Type: R134a O-Ring #1: 0155 Note: 2008 Navistar Prostar Reference Numbers 7416, 351192461, 3666273C1, 3666273-C1, 07-0816A,