| Class | Max No. of class | Nos. |
| 1966 - X Class (Diesel-electric) | ||
| 1977 - C Class (Diesel-Electric) | ||
| 1984 - G Class (Diesel-electric) | ||
| NSW 80 Class (Diesel-electric) | ||
| NSW 81 Class (Diesel-electric) | ||
| NSW 82 Class (Diesel-electric) | ||
| NSW 422 Class (Diesel-electric) | ||
| NSW 442 Class (Diesel-electric) | ||
| AN (Diesel-electric) | ||
| BL (Diesel-electric) | ||
| DL (Diesel-electric) | ||
| EL (Diesel-electric) | ||
| NR (Diesel-electric) | 120 | NR 1 - NR 120 |
| 1937 - BS 2nd Class | 1 | BS 1 (1st) |