Allis Chalmers HD20 vs Oliver OC-18
Side-by-side specs comparison
Verdict by the numbers
- The Allis Chalmers HD20 is more powerful than the Oliver OC-18: 175 HP versus 161 HP (+14 HP, +9%).
- The Oliver OC-18 is the more recent model: production started in 1952, versus 1951 for the Allis Chalmers HD20.
Full specs comparison
| Allis Chalmers HD20 | Oliver OC-18 | |
|---|---|---|
| Power | 175 HP | 161 HP |
| Production years | 1951–1954 | 1952–1960 |
| Fuel | Diesel | Diesel |
| Cylinders | 6 | 6 |
| Displacement | 10.8 L | 14.7 L |
| Transmission | — | Gear |
| Gears (fwd/rev) | 2 / 1 | 4 / 2 |
Frequently asked questions
Which is more powerful, the Allis Chalmers HD20 or the Oliver OC-18?
The Allis Chalmers HD20 is more powerful than the Oliver OC-18: 175 HP versus 161 HP (+14 HP, +9%).
Which is more recent, the Allis Chalmers HD20 or the Oliver OC-18?
The Oliver OC-18 is the more recent model: production started in 1952, versus 1951 for the Allis Chalmers HD20.