This page provides a detailed comparison of the specifications for the Challenger MT635 and the Hart-Parr Old Reliable 30-60.
| Challenger MT635 | Hart-Parr Old Reliable 30-60 | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Sisu | Hart-Parr |
| Engine Model | Sisu H18085 | - |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Kerosene |
| Engine Induction Type | Turbocharged aftercooled | Natural |
| Engine Cylinders | 6 | 2 |
| Engine Displacement Value | 449 ci (7.4 L) | 2356 ci (38.6 L) |
| Engine Rated Rpm | 2200 | 300 |
| Transmission | ||
| Transmission Type | Power shift | Gear |
| Transmission Forward Gears | 18 | 1 |
| Transmission Reverse Gears | 6 | 1 |
| Dimensions | ||
| Length Value | 203 | 200 |
| Width Value | 98.2 | 106 |
| Operating Weight Value | 18975 lb (8607 kg) | 20100 lb (9117 kg) |
| Miscellaneous | ||
| Chassis | 4x4 MFWD 4WD | 4x2 |
| Drive Type | 4WD | 2WD |
| Hitch Type | Type III | - |
| Hitch Position | Rear | - |
| Hydraulic System Type | Closed center pressure flow compensated (PFC) | - |
| Operator Station Type | Cab | - |
| Starter Type | Electric | - |
