Original CAT 8D-4765 Regulator New NOS 8D4765 Original Box NORGREN Brass Pressure Regulator in Original CAT Box Unused. ROTARY CUTTER. 789G 785D 773 793F 789 785 793. OFF HIGHWAY TRUCK. 785 793F CMD 797 793F OEM 775E 773E 785G 773D 797F 793F 789D 777D 785D 797B 777F.