Gravely lawn tractors 8123-G vs Kubota F3990
Side-by-side specs comparison
Verdict by the numbers
- The Kubota F3990 is more powerful than the Gravely lawn tractors 8123-G: 39 HP versus 12 HP (+27 HP, +225%).
- The Kubota F3990 is the more recent model: production started in 2014, versus 1986 for the Gravely lawn tractors 8123-G.
- The Kubota F3990 is heavier: 778 kg versus 378 kg for the Gravely lawn tractors 8123-G.
- The Kubota F3990 has the wider mower deck: 60" versus 40".
Full specs comparison
| Gravely lawn tractors 8123-G | Kubota F3990 | |
|---|---|---|
| Power | 12 HP | 39 HP |
| Production years | 1986 | 2014–2024 |
| Fuel | Gasoline | Diesel |
| Cylinders | 1 | 4 |
| Weight | 378 kg | 778 kg |
| Drive | 2WD | 4WD |
| Transmission | Gear | Hydrostatic |
| Gears (fwd/rev) | 8 / 4 | — |
| Wheelbase | 132 cm | 130 cm |
| Length | 208 cm | 251 cm |
| Mower deck | 40" | 60" |
Frequently asked questions
Which is more powerful, the Gravely lawn tractors 8123-G or the Kubota F3990?
The Kubota F3990 is more powerful than the Gravely lawn tractors 8123-G: 39 HP versus 12 HP (+27 HP, +225%).
Which is more recent, the Gravely lawn tractors 8123-G or the Kubota F3990?
The Kubota F3990 is the more recent model: production started in 2014, versus 1986 for the Gravely lawn tractors 8123-G.
Which is heavier, the Gravely lawn tractors 8123-G or the Kubota F3990?
The Kubota F3990 is heavier: 778 kg versus 378 kg for the Gravely lawn tractors 8123-G.
Which has the wider mower deck, the Gravely lawn tractors 8123-G or the Kubota F3990?
The Kubota F3990 has the wider mower deck: 60" versus 40".

