Allis Chalmers U vs Caterpillar Twenty-Five
Side-by-side specs comparison
Verdict by the numbers
- The Allis Chalmers U is more powerful than the Caterpillar Twenty-Five: 34 HP versus 33 HP (+1 HP, +3%).
- The Caterpillar Twenty-Five is the more recent model: production started in 1931, versus 1929 for the Allis Chalmers U.
Full specs comparison
| Allis Chalmers U | Caterpillar Twenty-Five | |
|---|---|---|
| Power | 34 HP | 33 HP |
| Production years | 1929–1952 | 1931–1933 |
| Fuel | Gasoline | Gasoline |
| Cylinders | 4 | 4 |
| Displacement | 5.2 L | 4.5 L |
| Weight | 2 086 kg | — |
| Drive | 2WD | — |
| Transmission | — | Gear |
| Gears (fwd/rev) | 3 / 1 | 3 / 1 |
| Length | 300 cm | — |
Frequently asked questions
Which is more powerful, the Allis Chalmers U or the Caterpillar Twenty-Five?
The Allis Chalmers U is more powerful than the Caterpillar Twenty-Five: 34 HP versus 33 HP (+1 HP, +3%).
Which is more recent, the Allis Chalmers U or the Caterpillar Twenty-Five?
The Caterpillar Twenty-Five is the more recent model: production started in 1931, versus 1929 for the Allis Chalmers U.

