| Owner (company): | Deutsche Bundesbahn |
| Line number: | 221 121-150 |
| Label: | 221 2. Serie |
| Era: | 4 |
| Power transmission: | Hydraulic transmission |
| Axle arrangement: | B' B' |
| Overall length: | 18440 mm |
| Wheelbase: | 14700 mm |
| Pivot distance: | 11500 mm |
| Bogie wheelbase: | 3200 mm |
| Traction wheel diameter: | 950 mm |
| Working weight: | 79500 kg |
| Weigth / m: | 4,311 t |
| Axle load: | 19,9 t |
| Maximum speed: | 140 km/h |
| Starting tractive effort: | 235 kN |
| Manufacturer: | Krauss-Maffei |
| Made in (Year): | 1964-1965 |
| Out of service: | 1988 |
| Amount: | 30 |
| Fuel tank: | 2700 l |
| Heating water: | 4000 l |
| Motor(s): | 2 × Daimler-Benz MB 835 Ab |
| Motor nominal rating: | 2 × 994 kW |
| Motor r.p.m.: | 1500 1/min |
| Motor weight: | 4500 kg |
| MZYL: | 12 |
| Cylinder diameter: | 190 mm |
| Stroke: | 230 mm |
| Cylinder capacity: | 78,25 l |
| Transmission gear: | Maybach Mekydro K 104 U |
| Brake: | WS-GPP²RmZ |
| Heating system: | Steam |