This page provides a detailed comparison of the specifications for the Allis Chalmers HD7 and the Oliver 1900.
| Allis Chalmers HD7 | Oliver 1900 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | General Motors | General Motors |
| Engine Model | Mar-71 | Apr-53 |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Blower | Blower |
| Engine Cylinders | 3 | 4 |
| Engine Displacement Value | 213 ci (3.5 L) | 212 ci (3.5 L) |
| Engine Rated Rpm | 1500 | 2200 |
| Transmission | ||
| Transmission Type | Sliding Gear | Partial power shift |
| Transmission Forward Gears | 4 | 12 |
| Transmission Reverse Gears | 1 | 4 |
| Dimensions | ||
| Length Value | 128 | 156.6 |
| Width Value | 81 | 97 |
| Operating Weight Value | 14000 lb (6350 kg) | 12000 lb (5443 kg) |
| Miscellaneous | ||
| Chassis | Crawler | - |
| Drive Type | Track | - |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | - | Three-Point Hitch |
| Hitch Category | - | II/I |
| Hitch Position | - | Rear |
| Starter Type | Electric | Electric |
