Description Western Star A/C Evaporator Replaces OEM: RD2-4043-0. Fits 2004-2007 Western Star Application: Western Star Description: Evaporator Height: 10″ Length: 11″ Inlet: #8 MOR Outlet: #10 MOR Type: Tube-Fin Refrigerant Type: R12/R134a O-Ring #1: 0013 O-Ring #2: 0015 Thickness: 3 1/8″