This page provides a detailed comparison of the specifications for the Allis Chalmers 7020 and the Hart-Parr Old Reliable 30-60.
| Allis Chalmers 7020 | Hart-Parr Old Reliable 30-60 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Allis Chalmers | Hart-Parr |
| Engine Model | 649I | - |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Kerosene |
| Engine Induction Type | Intercooled turbocharged | Natural |
| Engine Cylinders | 6 | 2 |
| Engine Displacement Value | 301 ci (4.9 L) | 2356 ci (38.6 L) |
| Engine Rated Rpm | 2300 | 300 |
| Engine Power Output Value | 124 hp (92.3 kW) | - |
| Transmission | ||
| Transmission Type | Partial power shift | Gear |
| Transmission Forward Gears | 6 | 1 |
| Transmission Reverse Gears | 2 | 1 |
| Dimensions | ||
| Length Value | 163 | 200 |
| Width Value | 92.6 | 106 |
| Operating Weight Value | 11770 lb (5339 kg) | 20100 lb (9117 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 |
| Drive Type | 2WD | 2WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | Three-Point Hitch | - |
| Hitch Category | III/II | - |
| Hitch Position | Rear | - |
| Hitch Capacity Value | 6680 lb (3030 kg) | - |
| Hydraulic System Type | Closed center | - |
| Operator Station Type | Acousta-Cab | - |
| Starter Type | Electric | - |
