Class M7 is a type of diesel-electric locomotive built for Sri Lanka Railways by Brush Traction, UK, and imported in 1981. This locomotive has the shortest length, least power and least weight compared to other diesel locomotives of Sri Lanka
| Engine Class | M7 |
| Built Country | Great Britain |
| Builder | Brush Traction |
| Imported Year | 1981 |
| Power Type | GM 8-645E |
| Engine Type | V8 2 stroke diesel |
| Power Output | 994 hp (741 kW) |
| Maximum Speed | 80 km/h (50 mph) |
| Axel Arrangement | Bo-Bo |
| Weight | 66 tons |
| Livery | Green and Red color |
| Total Produced | 16 |
Update in-progress
