Gray Tractor 18-30 vs International Harvester 15-30
Side-by-side specs comparison
Verdict by the numbers
- The International Harvester 15-30 is more powerful than the Gray Tractor 18-30: 33 HP versus 30 HP (+3 HP, +10%).
- The International Harvester 15-30 is heavier: 4077 kg versus 2698 kg for the Gray Tractor 18-30.
Full specs comparison
| Gray Tractor 18-30 | International Harvester 15-30 | |
|---|---|---|
| Power | 30 HP | 33 HP |
| Production years | 1917 | 1917–1921 |
| Fuel | Gasoline | Kerosene |
| Cylinders | 4 | 4 |
| Displacement | 7 L | 11.4 L |
| Weight | 2 698 kg | 4 077 kg |
| Drive | — | 2WD |
| Transmission | Gear | Gear |
| Gears (fwd/rev) | 2 / 1 | 2 / 1 |
| Length | 441 cm | 356 cm |
Frequently asked questions
Which is more powerful, the Gray Tractor 18-30 or the International Harvester 15-30?
The International Harvester 15-30 is more powerful than the Gray Tractor 18-30: 33 HP versus 30 HP (+3 HP, +10%).
Which is heavier, the Gray Tractor 18-30 or the International Harvester 15-30?
The International Harvester 15-30 is heavier: 4077 kg versus 2698 kg for the Gray Tractor 18-30.