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| info | |
| Series: | → MT445B |
| Production | |
| Manufacturer: | Challenger (a part of AGCO) |
| Type: | Utility tractor |
| Factory: | Beauvais, France |
| The Challenger MT425B is similar to the Massey Ferguson 5435 | |
| Challenger MT425B Power | |
| Engine: | 75 hp 55.9 kW |
| PTO (claimed): | 60 hp 44.7 kW |
| Drawbar (tested): | 48.5 hp 36.2 kW |
| PTO (tested): | 61.7 hp 46.0 kW |
| Mechanical | |
| Chassis: | 4x2 2WD, 4x4 MFWD 4WD |
| Steering: | power |
| Brakes: | hydraulic wet disc |
| Cab: | Cab optional. |
| Transmission: | 16-speed four speed power shift |
| Tractor hitch | |
| Rear Type: | II |
| Power Take-off (PTO) | |
| Rear RPM: | 540/1000 |
| Dimensions & Tires | |
| Weight: | 8885 to 9515 pounds |
| Front tire: | 7.50-16 |
| Rear tire: | 18.4R34 |
| Electrical | |
| Ground: | negative |
| Battery volts: | 12 |
| info | |
| Series: | → MT445B |
| Engine Detail | |
| Caterpillar 3054, diesel, 4-cylinder, liquid-cooled vertical, This engine was alternatively branded as a Perkins 1104C depending on market. | |
| Displacement: | 268 ci 4.4 L |
| Bore/Stroke: | 4.134x5.00 inches 105 x 127 mm |
| Emissions: | Tier 2 |
| Power: | 75 hp 55.9 kW |
| Fuel system: | direct injection |
| Air cleaner: | dual paper elements |
| Compression: | 19.3:1 |
| Rated RPM: | 2200 |
| Starter volts: | 12 |
| info | |
| Series: | → MT445B |
| Transmission | |
| Transmission: | Autopower IV |
| Type: | four speed power shift |
| Gears: | 16 forward and reverse |
| Clutch: | wet disc |
| Four power shift gears in four ranges. | |
| Speeds | |
| With 18.4R38 rear tires., |
| info | |
| Series: | → MT445B |
| Challenger MT425B Tires | |
| Ag front: | 7.50-16 (2WD), 14.9R24 (4WD) |
| Ag rear: | 18.4R34 |
| Dimensions | |
| 2WD Weight: | 8885 lbs 4030 kg |
| 4WD Weight: | 9515 lbs 4316 kg |