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| info | |
| The Challenger MT445B is similar to the Massey Ferguson 5445. |
| Production | |
| Manufacturer: | Challenger (a part of AGCO) |
| Factory: | Beauvais, France |
| Capacity | |
| Fuel: | 40 gal [151.4 L] |
| 3-Point Hitch | |
| Rear Type: | II |
| Control: | electronic top-link draft control |
| Rear lift (at 24"/610mm): | 7285 lbs [3304 kg] |
| Rear Arms: | telescopic stabilizers and link ends |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Clutch: | electro-hydraulic wet disc |
| Rear RPM: | 540/1000, 540/540E/1000/1000E |
| Dimensions & Tires | |
| Wheelbase: | 97 inches [246 cm] |
| Weight: | 8840 to 9445 pounds |
| Front tire: | 10.00-16 |
| Rear tire: | 480/70R38 |
| Challenger MT445B Power | |
| Engine: | 85 hp [63.4 kW] |
| PTO (claimed): | 70 hp [52.2 kW] |
| Drawbar (tested): | 60.5 hp [45.1 kW] |
| PTO (tested): | 75.9 hp [56.6 kW] |
| Mechanical | |
| Chassis: | 4x2 2WD, 4x4 MFWD 4WD |
| Final drives: | inboard planetary |
| Differential lock: | electro-hydraulic |
| Steering: | hydrostatic power |
| Brakes: | hydraulic wet disc |
| Cab: | ROPS. Cab optional with air-conditioning. |
| Hydraulics | |
| ROPS Type: | open center |
| Cab Type: | closed center load sensing |
| Pressure: | 2900 psi [200.0 bar] |
| Valves: | 2 to 4 |
| Pump flow: | 26.4 gpm [99.9 lpm] (open center), 29 gpm [109.8 lpm] (CCLS) |
| Electrical | |
| Ground: | negative |
| Battery | |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 4.134x5.00 inches [105 x 127 mm] |
| Emissions: | Tier 2 |
| Power: | 85 hp [63.4 kW] |
| Air cleaner: | dual paper elements |
| Compression: | 17.5:1 |
| Rated RPM: | 2200 |
| Starter volts: | 12 |
| Engine Detail | |
| This engine was alternative branded as a Perkins 1104C depending on market., Caterpillar 3054T, turbocharged diesel, 4-cylinder, liquid-cooled vertical, 268 ci [4.4 L] |
| info | |
| Previous model: | Challenger MT445 |
| Series next: | Challenger MT455B |
| Series back: | Challenger MT425B |
| Transmission | |
| Transmission: | Autopower IV |
| Type: | four speed power shift |
| Gears: | 16 forward and reverse |
| Clutch: | wet disc |
| Four power shift gears in four ranges. | |
| info | |
| Previous model: | Challenger MT445 |
| Series next: | Challenger MT455B |
| Series back: | Challenger MT425B |
| Dimensions | |
| Weight: | 8,840 lbs [4009 kg] (2WD), 9,445 lbs [4284 kg] (4WD) |
| Wheelbase: | 97 inches [246 cm] |
| Rear axle: | Flange |
| Challenger MT445B Tires | |
| Ag front: | 10.00-16 (2WD), 13.6R28 (4WD) |
| Ag rear: | 480/70R38 |
| info | |
| Available packages included the MT445BRU with a 40 GPM PTO hydraulic pump and a 22-foot Little & Company boom mower. The MT445BR had no rear hydraulics or hitch to allow an after-market mower installation. |