| ZL 501 Serie B | 1988 specifications |
| Engine | Hatz 3 L 40 Z |
| Rated output, at, r/s (r/min) | 46,7 (2 800) |
| ... SAE J1995 gross, kW (hp) | 31 (42) |
| ... DIN 70020/6271 net, kW (hp) | 33 (45) |
| Max torque, at, r/s (r/min) | 30 (1 800) |
| ... DIN 70020/6271, Nm | 108 |
| Max. speed, km/h | 20,0 |
| Tipping load | |
| ... straight (DIN), kg | 2 790 |
| ... full turn, kg | 2 190 |
| Breakout force, kN | 37 |
| ... with hook-on bucket, m3 | 0,5 |
| Bucket capacity, m3 | 0,5–1,5 |
| Operating weight, t | 4,2 |
| Production year | – |