Self propelled OHL inspection units
MTW 10
| Length | 11.94 m |
| Introduced | 1990-1991 |
| Builder | Plasser & Theuer |
| Power | 177 kW |
| Weight | 42 t |
| Engine | Deutz KHD F8L513 |
| Transmission | Hydrodynamic |
| Max Speed | 80 km/h, 100 km/h (hauled) |
| Driving Wheel Dia | 730 mm |
| Wheel Arrangement | B |
99 81 9431 005-3 or X521 001-8 at Villach HBF on 2.11.2019
Photo: Jaka Š
| Number | Alt number | Name | Status | Pool | Depot | Note |
|---|---|---|---|---|---|---|
| X521 001-8 | 9431 005-3 | A | VH | |||
| X521 002-6 | 9431 006-1, X521 002-8 | A | ||||
| X521 003-4 | 9431 007-9 | |||||
| X521 004-2 | 9431 008-7 |