This page provides a detailed comparison of the specifications for the Hart-Parr Old Reliable 30-60 and the Oliver OC-4.
| Hart-Parr Old Reliable 30-60 | Oliver OC-4 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Hart-Parr | Hercules |
| Engine Cooling Type | Liquid-cooled | - |
| Engine Fuel Type | Kerosene | Diesel |
| Engine Induction Type | Natural | Natural aspirated |
| Engine Cylinders | 2 | 3 |
| Engine Displacement Value | 2356 ci (38.6 L) | 130 ci (2.1 L) |
| Engine Rated Rpm | 300 | 1700 |
| Engine Power Output Value | - | 30 hp (22.7 kW) |
| Transmission | ||
| Transmission Type | Gear | Gear |
| Transmission Forward Gears | 1 | 4 |
| Transmission Reverse Gears | 1 | 1 |
| Dimensions | ||
| Length Value | 200 | 111 |
| Width Value | 106 | 60 |
| Operating Weight Value | 20100 lb (9117 kg) | 4720 lb (2141 kg) |
| Miscellaneous | ||
| Chassis | 4x2 | - |
| Drive Type | 2WD | - |
| Hitch Category | - | Category 3 |
| Starter Type | - | Electric Starter |
