Kubota F3990 vs Sears lawn tractors ST/12
Side-by-side specs comparison
Verdict by the numbers
- The Kubota F3990 is more powerful than the Sears lawn tractors ST/12: 39 HP versus 12 HP (+27 HP, +225%).
- The Kubota F3990 is the more recent model: production started in 2014, versus 1973 for the Sears lawn tractors ST/12.
- The Kubota F3990 is heavier: 778 kg versus 290 kg for the Sears lawn tractors ST/12.
- The Kubota F3990 has the wider mower deck: 60" versus 42".
Full specs comparison
| Kubota F3990 | Sears lawn tractors ST/12 | |
|---|---|---|
| Power | 39 HP | 12 HP |
| Production years | 2014–2024 | 1973–1976 |
| Fuel | Diesel | Gasoline |
| Cylinders | 4 | 1 |
| Weight | 778 kg | 290 kg |
| Drive | 4WD | 2WD |
| Transmission | Hydrostatic | Gear |
| Gears (fwd/rev) | — | 6 / 2 |
| Wheelbase | 130 cm | 110 cm |
| Length | 251 cm | 173 cm |
| Mower deck | 60" | 42" |
Frequently asked questions
Which is more powerful, the Kubota F3990 or the Sears lawn tractors ST/12?
The Kubota F3990 is more powerful than the Sears lawn tractors ST/12: 39 HP versus 12 HP (+27 HP, +225%).
Which is more recent, the Kubota F3990 or the Sears lawn tractors ST/12?
The Kubota F3990 is the more recent model: production started in 2014, versus 1973 for the Sears lawn tractors ST/12.
Which is heavier, the Kubota F3990 or the Sears lawn tractors ST/12?
The Kubota F3990 is heavier: 778 kg versus 290 kg for the Sears lawn tractors ST/12.
Which has the wider mower deck, the Kubota F3990 or the Sears lawn tractors ST/12?
The Kubota F3990 has the wider mower deck: 60" versus 42".