Allis Chalmers HD16A vs Oliver OC-18
Side-by-side specs comparison
Verdict by the numbers
- The Allis Chalmers HD16A is more powerful than the Oliver OC-18: 163 HP versus 161 HP (+2 HP, +1%).
- The Allis Chalmers HD16A is the more recent model: production started in 1955, versus 1952 for the Oliver OC-18.
Full specs comparison
| Allis Chalmers HD16A | Oliver OC-18 | |
|---|---|---|
| Power | 163 HP | 161 HP |
| Production years | 1955–1970 | 1952–1960 |
| Fuel | Diesel | Diesel |
| Cylinders | 6 | 6 |
| Displacement | 13.8 L | 14.7 L |
| Transmission | Gear | Gear |
| Gears (fwd/rev) | 6 / 3 | 4 / 2 |
Frequently asked questions
Which is more powerful, the Allis Chalmers HD16A or the Oliver OC-18?
The Allis Chalmers HD16A is more powerful than the Oliver OC-18: 163 HP versus 161 HP (+2 HP, +1%).
Which is more recent, the Allis Chalmers HD16A or the Oliver OC-18?
The Allis Chalmers HD16A is the more recent model: production started in 1955, versus 1952 for the Oliver OC-18.

