John Deere 420 vs Kubota F3990
Side-by-side specs comparison
Verdict by the numbers
- The Kubota F3990 is more powerful than the John Deere 420: 39 HP versus 20 HP (+19 HP, +95%).
- The Kubota F3990 is the more recent model: production started in 2014, versus 1983 for the John Deere 420.
- The Kubota F3990 has the wider mower deck: 60" versus 50".
Full specs comparison
| John Deere 420 | Kubota F3990 | |
|---|---|---|
| Power | 20 HP | 39 HP |
| Production years | 1983–1991 | 2014–2024 |
| Fuel | — | Diesel |
| Cylinders | 2 | 4 |
| Weight | — | 778 kg |
| Drive | 2WD | 4WD |
| Transmission | Hydrostatic | Hydrostatic |
| Rear lift capacity | 290 kg | — |
| Wheelbase | 132 cm | 130 cm |
| Length | 195 cm | 251 cm |
| Mower deck | 50" | 60" |
Frequently asked questions
Which is more powerful, the John Deere 420 or the Kubota F3990?
The Kubota F3990 is more powerful than the John Deere 420: 39 HP versus 20 HP (+19 HP, +95%).
Which is more recent, the John Deere 420 or the Kubota F3990?
The Kubota F3990 is the more recent model: production started in 2014, versus 1983 for the John Deere 420.
Which has the wider mower deck, the John Deere 420 or the Kubota F3990?
The Kubota F3990 has the wider mower deck: 60" versus 50".