Advance-Rumely OilPull G 20/40 vs Hart-Parr 40
Side-by-side specs comparison
Verdict by the numbers
- The Advance-Rumely OilPull G 20/40 and the Hart-Parr 40 deliver the same power: 44 HP.
- The Hart-Parr 40 is the more recent model: production started in 1923, versus 1918 for the Advance-Rumely OilPull G 20/40.
- The Advance-Rumely OilPull G 20/40 is heavier: 5842 kg versus 3402 kg for the Hart-Parr 40.
Full specs comparison
| Advance-Rumely OilPull G 20/40 | Hart-Parr 40 | |
|---|---|---|
| Power | 44 HP | 44 HP |
| Production years | 1918–1924 | 1923–1927 |
| Fuel | Kerosene | Gasoline |
| Cylinders | 2 | 4 |
| Displacement | 16.5 L | 10.1 L |
| Weight | 5 842 kg | 3 402 kg |
| Drive | 2WD | 2WD |
| Transmission | Gear | Gear |
| Gears (fwd/rev) | 2 / 1 | 2 / 1 |
| Length | 444 cm | 355 cm |
Frequently asked questions
Which is more powerful, the Advance-Rumely OilPull G 20/40 or the Hart-Parr 40?
The Advance-Rumely OilPull G 20/40 and the Hart-Parr 40 deliver the same power: 44 HP.
Which is more recent, the Advance-Rumely OilPull G 20/40 or the Hart-Parr 40?
The Hart-Parr 40 is the more recent model: production started in 1923, versus 1918 for the Advance-Rumely OilPull G 20/40.
Which is heavier, the Advance-Rumely OilPull G 20/40 or the Hart-Parr 40?
The Advance-Rumely OilPull G 20/40 is heavier: 5842 kg versus 3402 kg for the Hart-Parr 40.

