John Deere RX63 vs Kubota F3990
Side-by-side specs comparison
Verdict by the numbers
- The Kubota F3990 is more powerful than the John Deere RX63: 39 HP versus 6 HP (+33 HP, +550%).
- The Kubota F3990 is the more recent model: production started in 2014, versus 1987 for the John Deere RX63.
- The Kubota F3990 is heavier: 778 kg versus 139 kg for the John Deere RX63.
- The Kubota F3990 has the wider mower deck: 60" versus 26".
Full specs comparison
| John Deere RX63 | Kubota F3990 | |
|---|---|---|
| Power | 6 HP | 39 HP |
| Production years | 1987–1990 | 2014–2024 |
| Fuel | Gasoline | Diesel |
| Cylinders | 1 | 4 |
| Weight | 139 kg | 778 kg |
| Drive | 2WD | 4WD |
| Transmission | — | Hydrostatic |
| Gears (fwd/rev) | 7 / 1 | — |
| Wheelbase | 106 cm | 130 cm |
| Length | 154 cm | 251 cm |
| Mower deck | 26" | 60" |