| British Rail Class 204 | |
|---|---|
 204004 at Eastleigh in 1986 | |
| In service | 1957–1987 |
| Replaced | Steam locomotives and carriages |
| Scrapped | 1987 |
| Number built | 8 units (3 rebuilt from Class 205) |
| Number preserved | 1 driving trailer |
| Number scrapped | 7 complete units |
| Fleet numbers | 1401-1404 204001-004 |
| Operators | British Railways |
| Lines served | Southern Region |
| Specifications | |
| Prime mover(s) | English Electric 4SRKT Mark II |
| Power output | 600 shp (450 kW) at 850 rpm |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) |
The British Rail Class 204 designation has been used twice for two similar types of diesel-electric multiple units.