The KTM Class 81 is the first type of electric multiple unit (EMU) introduced by Keretapi Tanah Melayu Berhad (KTMB) on its KTM Komuter services. 18 sets were built by Jenbacher Transport in 3-car formations.
Specifications
| In service: | 1994 until present |
| Manufacturer | Jenbacher Transport |
| Number built: | 54 cars (18 trainsets) |
| Formation: | 3 per trainset |
| Capacity: | 414 passengers (224 seats) |
| Operator: | Keretapi Tanah Melayu |
| Height: | 3.65 m |
| Maximum speed: | 160 km/h (Design), 120 km/h (Service) |
| Weight: | 121 tonnes |
| Voltage: | 25kV AC 50Hz catenary |
| Gauge: | Metre gauge |