This page provides a detailed comparison of the specifications for the Hart-Parr Old Reliable 30-60 and the McCormick-Deering OS-4.
| Hart-Parr Old Reliable 30-60 | McCormick-Deering OS-4 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Hart-Parr | International Harvester |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Kerosene | Gasoline |
| Engine Induction Type | Natural | - |
| Engine Cylinders | 2 | 4 |
| Engine Displacement Value | 2356 ci (38.6 L) | 152 ci (2.5 L) |
| Engine Rated Rpm | 300 | 1650 |
| Transmission | ||
| Transmission Type | Gear | Gear |
| Transmission Forward Gears | 1 | 5 |
| Transmission Reverse Gears | 1 | 1 |
| Dimensions | ||
| Length Value | 200 | 120.875 |
| Width Value | 106 | 55.5 |
| Operating Weight Value | 20100 lb (9117 kg) | 4120 lb (1869 kg) |
| Miscellaneous | ||
| Chassis | 4x2 | - |
| Drive Type | 2WD | - |
| Hitch Category | - | Category 3 |
