Allis Chalmers 25-40 vs Caterpillar Twenty-Eight
Side-by-side specs comparison
Verdict by the numbers
- The Allis Chalmers 25-40 is more powerful than the Caterpillar Twenty-Eight: 44 HP versus 41 HP (+3 HP, +7%).
- The Caterpillar Twenty-Eight is the more recent model: production started in 1933, versus 1930 for the Allis Chalmers 25-40.
Full specs comparison
| Allis Chalmers 25-40 | Caterpillar Twenty-Eight | |
|---|---|---|
| Power | 44 HP | 41 HP |
| Production years | 1930–1936 | 1933–1935 |
| Fuel | — | Gasoline |
| Cylinders | 4 | 4 |
| Displacement | 9.2 L | 4.5 L |
| Weight | 3 175 kg | — |
| Drive | 2WD | — |
| Transmission | Gear | Gear |
| Gears (fwd/rev) | 2 / 1 | 3 / 1 |
| Length | 386 cm | — |
Frequently asked questions
Which is more powerful, the Allis Chalmers 25-40 or the Caterpillar Twenty-Eight?
The Allis Chalmers 25-40 is more powerful than the Caterpillar Twenty-Eight: 44 HP versus 41 HP (+3 HP, +7%).
Which is more recent, the Allis Chalmers 25-40 or the Caterpillar Twenty-Eight?
The Caterpillar Twenty-Eight is the more recent model: production started in 1933, versus 1930 for the Allis Chalmers 25-40.

