Builder: English Electric at Vulcan Foundry and Robert Stephenson and Hawthorns
Power: Diesel-electric
Built: 1957–1962, 1965–1968
Number in class: 228
Withdrawn: 1976–present
Numbers: D8000–D8199, D8300–D8327; later 20001–20228, 20301-20315, 20901-20906