| Origin | Sungei Ujong Railway | Builder | Dubs, Scotland |
| FMSR Class | K | Cylinder | 12 x 18 inches |
| FMSR Number range | 102 | Boiler Pressure | 130 psi |
| KTM Class | n/a | Driving Wheel Diameter | 42 inches |
| KTM Number range | n/a | Water Capacity | |
| Introduced | 1899 | Weight Full | 28 tons |
| Extinct | 1926 | Tractive Effort |
The original Class K 4-4-2T consisted of a single locomotive, taken over by FMSR from the Sungei Ujong Railway in 1908.