This page provides a detailed comparison of the specifications for the Allis Chalmers HD20 and the International Harvester TD-25 Series 250.
| Allis Chalmers HD20 | International Harvester TD-25 Series 250 | |
|---|---|---|
| Images | ||
| Engine | ||
| Engine Manufacturer | General Motors | International Harvester |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Blower | Turbocharged |
| Engine Cylinders | 6 | 6 |
| Engine Displacement Value | 660 ci (10.8 L) | 817 ci (13.4 L) |
| Engine Rated Rpm | 1700 | 1500 |
| Transmission | ||
| Transmission Type | Torque converter | Two-speed power shift |
| Transmission Forward Gears | 2 | 8 |
| Transmission Reverse Gears | 1 | 8 |
| Dimensions | ||
| Length Value | 191 | 196.875 |
| Width Value | - | 104 |
| Operating Weight Value | 41000 lb (18597 kg) | 45550 lb (20661 kg) |
| Miscellaneous | ||
| Hitch Category | - | Category 3 |
| Starter Type | 24 volts | Electric |
