Volvo BM 4400 Underground
In 1984, a new cab with tilt steering wheel was introduced.
In 1985, asbestos-free brakes were introduced.
| 4400 Underground | 1984 specifications |
| Engine | Volvo TD 60 B |
| Engine output (SAE), kW (hp) | 104 (143) |
| Tip. load (straight/full turn), kg | 8 600 / 7 600 |
| Bucket volume, m3 | 1,9–2,3 |
| Tires | 20.5-25/16-L3 |
| Operating weight, kg | 11 850 |
| Production year | 1978–1987 |