| 621 | 1973 specifications |
| Engine | Volvo BM D 42 |
| Engine output (SAE), kW (hp) | 59 (80) |
| Tip. load, kg | 3 000 |
| Bucket volume, m3 | 0,9–3,0 |
| Tires front | 16.9-30/14 |
| Tires rear | 9.00-20/10 |
| No. of driven wheels | 2 |
| Operating weight, kg | 7 200 |
| Production no. 621/641 | 11 516 |
| Production year | 1970–1978 |