Caterpillar Thirty-Five vs Hart-Parr 28-44
Side-by-side specs comparison
Verdict by the numbers
- The Caterpillar Thirty-Five and the Hart-Parr 28-44 deliver the same power: 48 HP.
- The Caterpillar Thirty-Five is the more recent model: production started in 1932, versus 1930 for the Hart-Parr 28-44.
Full specs comparison
| Caterpillar Thirty-Five | Hart-Parr 28-44 | |
|---|---|---|
| Power | 48 HP | 48 HP |
| Production years | 1932–1934 | 1930–1937 |
| Fuel | Diesel | Kerosene |
| Cylinders | 3 | 4 |
| Displacement | 8.5 L | 7.3 L |
| Weight | — | 2 909 kg |
| Drive | — | 2WD |
| Transmission | Gear | Gear |
| Gears (fwd/rev) | 4 / 1 | 3 / 1 |
| Wheelbase | — | 203 cm |
| Length | — | 319 cm |
Frequently asked questions
Which is more powerful, the Caterpillar Thirty-Five or the Hart-Parr 28-44?
The Caterpillar Thirty-Five and the Hart-Parr 28-44 deliver the same power: 48 HP.
Which is more recent, the Caterpillar Thirty-Five or the Hart-Parr 28-44?
The Caterpillar Thirty-Five is the more recent model: production started in 1932, versus 1930 for the Hart-Parr 28-44.

