Cummins 6CT 8.3, Engine Misc Parts, (GOOD USED) Cummins 6CT 8.3L 3918685-02-5 FACK Air Transfer Elbow Tube For Sale, Pulled off Cummins 6CT 8.3L, Elbow shape, 3918685025FACK, FACK, 5 FACK, I3918685-02-5 FACK, P/N 3918685 02 5 FACK, Stock # 4632