This page provides a detailed comparison of the specifications for the Ford 3900 and the Hart-Parr Old Reliable 30-60.
| Ford 3900 | Hart-Parr Old Reliable 30-60 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Ford | Hart-Parr |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Kerosene |
| Engine Induction Type | Indirect Injection | Natural |
| Engine Cylinders | 3 | 2 |
| Engine Displacement Value | 175 ci (2.9 L) | 2356 ci (38.6 L) |
| Engine Rated Rpm | 2000 | 300 |
| Engine Power Output Value | 47 hp (35.0 kW) | - |
| Transmission | ||
| Transmission Type | Gear | Gear |
| Transmission Forward Gears | 8 | 1 |
| Transmission Reverse Gears | 2 | 1 |
| Dimensions | ||
| Length Value | 134.7 | 200 |
| Width Value | 73.2 | 106 |
| Operating Weight Value | 4766 lb (2162 kg) | 20100 lb (9117 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 |
| Drive Type | 2WD | 2WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Category | I | - |
| Starter Type | Electric | - |
