Stihl 140 vs Unitrak UD 12
Side-by-side specs comparison
Verdict by the numbers
- The Stihl 140 and the Unitrak UD 12 deliver the same power: 12 HP.
- The Unitrak UD 12 is the more recent model: production started in 1949, versus 1948 for the Stihl 140.
Full specs comparison
| Stihl 140 | Unitrak UD 12 | |
|---|---|---|
| Power | 12 HP | 12 HP |
| Production years | 1948–1954 | 1949–1955 |
| Fuel | Diesel | Diesel |
| Cylinders | 1 | 1 |
| Displacement | 0.8 L | — |
| Weight | 770 kg | — |
| Drive | 2WD | 2WD |
| Transmission | Synchronized | Gear |
| Gears (fwd/rev) | 3 / 1 | 4 / 1 |