 The Class 34-400 type GE U26C diesel-electric locomotive was designed by General Electric (GE) and built for the South African Railways (SAR) by the South African General Electric-Dorman Long Locomotive Group (, later Dorbyl).One hundred locomotives were delivered between April 1973 and November 1974, numbered in the range from to .As built, the GE Classes, and locomotives were visually indistinguishable from each other.