Kubota F3990 vs Simplicity 4040
Side-by-side specs comparison
Verdict by the numbers
- The Kubota F3990 is more powerful than the Simplicity 4040: 39 HP versus 16 HP (+23 HP, +144%).
- The Kubota F3990 is the more recent model: production started in 2014, versus 1972 for the Simplicity 4040.
- The Kubota F3990 is heavier: 778 kg versus 589 kg for the Simplicity 4040.
Full specs comparison
| Kubota F3990 | Simplicity 4040 | |
|---|---|---|
| Power | 39 HP | 16 HP |
| Production years | 2014–2024 | 1972 |
| Fuel | Diesel | Electric |
| Cylinders | 4 | — |
| Weight | 778 kg | 589 kg |
| Drive | 4WD | 2WD |
| Transmission | Hydrostatic | Hydrostatic |
| Wheelbase | 130 cm | 142 cm |
| Length | 251 cm | 210 cm |
| Mower deck | 60" | 60" |
Frequently asked questions
Which is more powerful, the Kubota F3990 or the Simplicity 4040?
The Kubota F3990 is more powerful than the Simplicity 4040: 39 HP versus 16 HP (+23 HP, +144%).
Which is more recent, the Kubota F3990 or the Simplicity 4040?
The Kubota F3990 is the more recent model: production started in 2014, versus 1972 for the Simplicity 4040.
Which is heavier, the Kubota F3990 or the Simplicity 4040?
The Kubota F3990 is heavier: 778 kg versus 589 kg for the Simplicity 4040.

