Kubota F3990 vs Roper lawn tractors L121
Side-by-side specs comparison
Verdict by the numbers
- The Kubota F3990 is more powerful than the Roper lawn tractors L121: 39 HP versus 11 HP (+28 HP, +255%).
- The Kubota F3990 is the more recent model: production started in 2014, versus 1979 for the Roper lawn tractors L121.
- The Kubota F3990 is heavier: 778 kg versus 178 kg for the Roper lawn tractors L121.
- The Kubota F3990 has the wider mower deck: 60" versus 36".
Full specs comparison
| Kubota F3990 | Roper lawn tractors L121 | |
|---|---|---|
| Power | 39 HP | 11 HP |
| Production years | 2014–2024 | 1979–1981 |
| Fuel | Diesel | Gasoline |
| Cylinders | 4 | — |
| Weight | 778 kg | 178 kg |
| Drive | 4WD | 2WD |
| Transmission | Hydrostatic | — |
| Gears (fwd/rev) | — | 3 / 1 |
| Wheelbase | 130 cm | 110 cm |
| Length | 251 cm | 160 cm |
| Mower deck | 60" | 36" |