Big Bud 740 vs John Deere 9RX 640
Side-by-side specs comparison
Verdict by the numbers
- The Big Bud 740 is more powerful than the John Deere 9RX 640: 740 HP versus 631 HP (+109 HP, +17%).
- The John Deere 9RX 640 is the more recent model: production started in 2021, versus 1987 for the Big Bud 740.
Full specs comparison
| Big Bud 740 | John Deere 9RX 640 | |
|---|---|---|
| Power | 740 HP | 631 HP |
| Production years | 1987–1990 | 2021+ |
| Fuel | Diesel | Diesel |
| Cylinders | 6 | 6 |
| Displacement | 23.2 L | 13.6 L |
| Weight | 34 020 kg | — |
| Drive | 4WD | — |
| Transmission | Power shift | Power shift |
| Gears (fwd/rev) | 12 / 2 | 18 / 6 |
| Rear lift capacity | — | 6 804 kg |
| Cab | Yes | Yes |
Frequently asked questions
Which is more powerful, the Big Bud 740 or the John Deere 9RX 640?
The Big Bud 740 is more powerful than the John Deere 9RX 640: 740 HP versus 631 HP (+109 HP, +17%).
Which is more recent, the Big Bud 740 or the John Deere 9RX 640?
The John Deere 9RX 640 is the more recent model: production started in 2021, versus 1987 for the Big Bud 740.

