This page provides a detailed comparison of the specifications for the Allis Chalmers 7020 and the Challenger MT425. The specifications are categorized into four main sections: Engine, Transmission, Dimensions, and Miscellaneous. By comparing these two tractors side by side, you can easily identify the similarities and differences between them and determine which one best suits your needs.
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Allis Chalmers 7020
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Challenger MT425
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| Images | ||
| Engine | ||
| Engine - Manufacturer | Allis Chalmers | Perkins |
| Engine - Model | 649I | 3054 |
| Engine - Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine - Cylinder Orientation | - | - |
| Engine - Valve Configuration | - | - |
| Engine - Fuel Type | Diesel | Diesel |
| Engine - Induction Type | - | - |
| Engine - Cylinders | 6 | 4 |
| Engine - Displacement (ci) | 301 | 243 |
| Engine - Bore (in) | 3.875 | 3.937 |
| Engine - Stroke (in) | - | - |
| Engine - Rated RPM | 2300 | 2200 |
| Engine - Power Output (hp) | 123.79 | - |
| Transmission | ||
| Transmission - Type | Partial power shift | 24-speed power shuttle |
| Transmission - Forward Gears | 6 ranges with operator power shift | 24 |
| Transmission - Reverse Gears | - | - |
| Transmission - Total Gears | - | - |
| Dimensions | ||
| Length (in) | 163 | 158 (2WD), 161 (4WD) |
| Width (in) | 92.6 | 77 |
| Height (in) | 116 (to exhaust) | 103 (ROPS), 96 (Cab) |
| Operating Weight (lb) | 11,770 (without ballast) | 6182 (2WD ROPS), 6520 (4WD ROPS), 6935 (2WD Cab), 7487 (4WD Cab) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 2WD |
| Drive Type | 2WD | 2WD |
| Steering Type | Hydrostatic power | Power |
| Coolant Capacity (qts) | 26 | - |
| Front Tire Diameter (in) | - | - |
| Front Tire Width (in) | 11 | - |
| Rear Tire Diameter (in) | - | 18.4 |
| Rear Tire Width (in) | - | - |
| Front/Rear Rim Diameter (in) | - | - |
| Tire Type | Ag | - |
| Manufacture - End Year | 1981 | - |
| Hitch Type | Three-Point Hitch | - |
| Hitch Category | - | - |
| Hitch Position | Rear | Rear |
| Hitch Capacity (lb) | 6,680 (at 610 mm/24 in) | - |
| Operator Station Type | Acousta-Cab | ROPS/Cab |
| Starter Type | Electric | 12 volts |
| PTO Type | Independent | - |
| PTO Speed 1 (rpm) | 540/1,000 | - |
| PTO Speed 2 (rpm) | - | - |
| PTO Speed 3 (rpm) | - | - |
| Brake Type | Differential hydraulic wet disc | - |
| Hydraulic System Type | Closed center | Open center |
