Ariens lawn tractors RM728 vs Kubota F3990
Side-by-side specs comparison
Verdict by the numbers
- The Kubota F3990 is more powerful than the Ariens lawn tractors RM728: 39 HP versus 7 HP (+32 HP, +457%).
- The Kubota F3990 is the more recent model: production started in 2014, versus 1978 for the Ariens lawn tractors RM728.
- The Kubota F3990 is heavier: 778 kg versus 170 kg for the Ariens lawn tractors RM728.
- The Kubota F3990 has the wider mower deck: 60" versus 28".
Full specs comparison
| Ariens lawn tractors RM728 | Kubota F3990 | |
|---|---|---|
| Power | 7 HP | 39 HP |
| Production years | 1978–1980 | 2014–2024 |
| Fuel | Gasoline | Diesel |
| Cylinders | 1 | 4 |
| Weight | 170 kg | 778 kg |
| Drive | 2WD | 4WD |
| Transmission | — | Hydrostatic |
| Gears (fwd/rev) | 6 / 1 | — |
| Wheelbase | 115 cm | 130 cm |
| Length | 158 cm | 251 cm |
| Mower deck | 28" | 60" |
Frequently asked questions
Which is more powerful, the Ariens lawn tractors RM728 or the Kubota F3990?
The Kubota F3990 is more powerful than the Ariens lawn tractors RM728: 39 HP versus 7 HP (+32 HP, +457%).
Which is more recent, the Ariens lawn tractors RM728 or the Kubota F3990?
The Kubota F3990 is the more recent model: production started in 2014, versus 1978 for the Ariens lawn tractors RM728.
Which is heavier, the Ariens lawn tractors RM728 or the Kubota F3990?
The Kubota F3990 is heavier: 778 kg versus 170 kg for the Ariens lawn tractors RM728.
Which has the wider mower deck, the Ariens lawn tractors RM728 or the Kubota F3990?
The Kubota F3990 has the wider mower deck: 60" versus 28".