| Owner (company): | Deutsche Bundesbahn |
| Line number: | 61 80 71-40 856-877, 61 80 71-41 856-877 |
| Type: | Sleeping car type "Universal" WL AB33 |
| Label: | WLABümh 174, 4th series |
| Category: | Passenger coach |
| Era: | 4a-4b |
| Overall length: | 26400 mm |
| Width: | 2816 mm |
| Heigth: | 4260 mm |
| Wheelbase: | 21500 mm |
| Pivot distance: | 19000 mm |
| Bogie wheelbase: | 2500 mm |
| Bogie type: | Minden-Deutz MD36 |
| Weight: | 50000 kg |
| Seat: | 33, 11 compartments with 3 berths each + 4 folding seats in the aisle |
| Interiour arrangement: | Compartments, closed lateral corridor |
| Maximum speed: | 140 km/h |
| Manufacturer: | Hansa Waggonfabrik GmbH, Bremen |
| Made in (Year): | 1964 |
| Amount: | 22 |
| Water: | 2000 l |
| Brake: | KE-GPR |
| Heating system: | Air conditioning - steam, multiple electric systems, fuel heating |
| Lighting: | Fluorescent tubes |