| Owner (company): | MÁV |
| Line number: | Bah 4000 - 4900 |
| Category: | Passenger coach |
| Overall length: | 23760 mm |
| Width: | 2860 mm |
| Heigth: | 3861 mm |
| Pivot distance: | 16500 mm |
| Bogie wheelbase: | 2500 mm |
| Bogie type: | KALÁKA III. |
| Vehicle gauge: | MSZ 8694 |
| Weight: | 36000 kg |
| Weigth / m: | 1,5 t |
| Axle load: | 9 t |
| Seat: | 80 |
| Interiour arrangement: | Saloon, central corridor |
| Maximum speed: | 120 km/h |
| Manufacturer: | Dunakeszi Jj.Ü.V. |
| Made in (Year): | 1958 - |
| Brake: | KE-P, Hik-P |
| Heating system: | Steam heating "Kurz" + electric heating |
| Lighting: | Electric |