Gray Tractor 20-35 vs Hart-Parr Oil King 23-35
Side-by-side specs comparison
Verdict by the numbers
- The Hart-Parr Oil King 23-35 is more powerful than the Gray Tractor 20-35: 38 HP versus 35 HP (+3 HP, +9%).
- The Hart-Parr Oil King 23-35 is the more recent model: production started in 1916, versus 1914 for the Gray Tractor 20-35.
- The Hart-Parr Oil King 23-35 is heavier: 5443 kg versus 3628 kg for the Gray Tractor 20-35.
Full specs comparison
| Gray Tractor 20-35 | Hart-Parr Oil King 23-35 | |
|---|---|---|
| Power | 35 HP | 38 HP |
| Production years | 1914–1916 | 1916–1919 |
| Fuel | Gasoline | Kerosene |
| Cylinders | 4 | 1 |
| Displacement | 7.8 L | 12.9 L |
| Weight | 3 628 kg | 5 443 kg |
| Drive | — | 2WD |
| Transmission | Gear | Gear |
| Gears (fwd/rev) | 2 / 1 | 2 / 1 |
| Length | 515 cm | 273 cm |
Frequently asked questions
Which is more powerful, the Gray Tractor 20-35 or the Hart-Parr Oil King 23-35?
The Hart-Parr Oil King 23-35 is more powerful than the Gray Tractor 20-35: 38 HP versus 35 HP (+3 HP, +9%).
Which is more recent, the Gray Tractor 20-35 or the Hart-Parr Oil King 23-35?
The Hart-Parr Oil King 23-35 is the more recent model: production started in 1916, versus 1914 for the Gray Tractor 20-35.
Which is heavier, the Gray Tractor 20-35 or the Hart-Parr Oil King 23-35?
The Hart-Parr Oil King 23-35 is heavier: 5443 kg versus 3628 kg for the Gray Tractor 20-35.