| Nickname: | Zetor |
| Owner (company): | MÁV |
| Line number: | M31 |
| Category: | Diesel locomotive |
| Power transmission: | Hydraulic transmission |
| Axle arrangement: | C |
| Overall length: | 10095 mm |
| Width: | 3000 mm |
| Heigth: | 4105 mm |
| Traction wheel diameter: | 1225 mm |
| Weight: | 45000 kg |
| Maximum speed: | 45 km/h |
| Continuous output: | 331 kW |
| Manufacturer: | Ganz-MÁVAG |
| Made in (Year): | 1958 - 1960 |
| Amount: | 53 (MÁV) |
| Motor(s): | 12 Jv 17/24 |