This page provides a detailed comparison of the specifications for the Allis Chalmers HD20 and the International Harvester 4186.
| Allis Chalmers HD20 | International Harvester 4186 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | General Motors | International Harvester |
| Engine Model | - | DT-436 |
| 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) | 436 ci (7.1 L) |
| Engine Rated Rpm | 1700 | 2400 |
| Transmission | ||
| Transmission Type | Torque converter | Gear |
| Transmission Forward Gears | 2 | 8 |
| Transmission Reverse Gears | 1 | 4 |
| Dimensions | ||
| Length Value | 191 | 194 |
| Operating Weight Value | 41000 lb (18597 kg) | 22400 lb (10160 kg) |
| Miscellaneous | ||
| Chassis | - | 4x4 4WD |
| Drive Type | - | 4WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | - | Category III/II |
| Hitch Category | - | 3 |
| Hydraulic System Type | - | Open center |
| Starter Type | 24 volts | Electric |
