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| info | |
| 1979 - 1982 3 Series, Four-wheel Drive (4WD) tractor |
| Production | |
| Manufacturer: | Big Bud |
| Factory: | Havre, Montana, USA |
| Variants | |
| 525/20: | gear shift |
| 525/50: | power shift |
| Dimensions & Tires | |
| Wheelbase: | 150 inches [381 cm] |
| 525/20 Serial Numbers | |
| - Serial numbers unknown - |
| Big Bud 525/20 Power | |
| Engine: | 525 hp [391.5 kW] |
| Mechanical | |
| Chassis: | 4x4 articulated 4WD |
| Steering: | hydrostatic power |
| Cab: | Cruiser Cab standard. |
| Electrical | |
| Ground: | negative |
| info | |
| Bore/Stroke: | 6.25x6.25 inches [159 x 159 mm] |
| Power: | 525 hp [391.5 kW] |
| Air cleaner: | dual dry element |
| Rated RPM: | 2100 |
| Starter: | electric |
| Starter volts: | 24 |
| Engine Detail | |
| Cummins 12V149, turbocharged diesel, 6-cylinder, liquid-cooled, 1150 ci [18.8 L] |
| Transmission | |
| Transmission: | Fuller |
| Type: | gear |
| Gears: | 12 forward and 2 reverse |
| Dimensions | |
| Wheelbase: | 150 inches [381 cm] |