This page provides a detailed comparison of the specifications for the Challenger MT975B and the Hart-Parr Old Reliable 30-60.
| Challenger MT975B | Hart-Parr Old Reliable 30-60 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Caterpillar | Hart-Parr |
| Engine Model | C18 | - |
| Engine Cooling Type | liquid-cooled | Liquid-cooled |
| Engine Fuel Type | diesel | Kerosene |
| Engine Induction Type | Turbocharged / Air-to-Air Aftercooled | Natural |
| Engine Cylinders | 6 | 2 |
| Engine Displacement Value | 1105 ci (18.1 L) | 2356 ci (38.6 L) |
| Engine Rated Rpm | 2100 | 300 |
| Engine Power Output Value | 585 hp (436.0 kW) | - |
| Transmission | ||
| Transmission Type | selective gear fixed ratio with full range operator controlled power shift | Gear |
| Transmission Forward Gears | 16 | 1 |
| Transmission Reverse Gears | 4 | 1 |
| Dimensions | ||
| Length Value | 298 | 200 |
| Width Value | 200 | 106 |
| Operating Weight Value | 59820 lb (27134 kg) | 20100 lb (9117 kg) |
| Miscellaneous | ||
| Chassis | - | 4x2 |
| Drive Type | - | 2WD |
| Hitch Category | IVN/III Opt | - |
| Hydraulic System Type | closed center PFC | - |
