Sri Lankan railways Class w3 is a locomotive that can run on any rail track in Sri Lanka. The locomotive is rehabilitated using the class W1 engines which were imported to Sri Lanka in 1969. After 20 years those engines become out of service, SLR officers decide to rebuild the Locomotives with New engines after that SLR have rehabilitated 10 W1 locomotives and named them Class W3. Class W3 Locomotive is partly made in Sri Lanka. If you are a train lover or a fan of Train engines/locomotives in Sri Lanka class w3 has a special place in Sri Lankan railway history.
Stats of Class W3 locomotive – Sri Lankan railways
| Model | DH3 1200 |
| Loco color | Blue-Silver and yellow stripe |
| Power Source | Diesel |
| Track Gauge | 1.676 m (5 ft 6 in) |
| Rebuild date | 1997 |
| Maximum speed | 80kmph |
| Transmission type | Diesel-Hydraulic |
| Length | 12 M |
| Weight | 61 tons |
| Power output | 1,200 horsepower (890 kW) 4 stroke |
| No of Locos | 10 |
| Running tracks | Can run in any rail track in Sri Lanka |
| Brake | Air – Hydro-Dynamic |
Loco numbers – No. 631, 636, 638, 647, 659, 665, 666, 667, 669 and 673
