This page provides a detailed comparison of the specifications for the Hart-Parr 28-44 and the Oliver 90.
| Hart-Parr 28-44 | Oliver 90 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Hart-Parr | Waukesha-Oliver |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Kerosene | Kerosene |
| Engine Induction Type | Naturally aspirated | - |
| Engine Cylinders | 4 | 4 |
| Engine Displacement Value | 443 ci (7.3 L) | 443 ci (7.3 L) |
| Engine Rated Rpm | 1125 | 1125 |
| Transmission | ||
| Transmission Type | Gear | Gear |
| Transmission Forward Gears | 3 | 4 |
| Transmission Reverse Gears | 1 | 1 |
| Dimensions | ||
| Length Value | 125.75 | - |
| Width Value | 65 | - |
| Operating Weight Value | 6415 lb (2910 kg) | 7000 lb (3175 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 2WD |
| Drive Type | 2WD | 2WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Category | 3 | - |
| Hitch Position | Rear | - |
| Operator Station Type | Open | - |
| Starter Type | - | Hand-crank |
