Challenger MT445B: all source data
All 62 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Challenger (a part of AGCO) |
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| (no label) | Utility tractor |
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| (no label) | Built in Beauvais, France |
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| (no label) | The Challenger MT445B is similar to the Massey Ferguson 5445. |
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Engine| (no label) | Caterpillar 4.4L 4-cyl diesel |
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| Fuel tank | 40 gal | 151.4 L |
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Transmission| (no label) | 16-speed four speed power shift |
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Power| Engine | 85 hp | 63.4 kW |
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| PTO (claimed) | 70 hp | 52.2 kW |
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| Drawbar (tested) | 60.5 hp | 45.1 kW |
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| PTO (tested) | 75.9 hp | 56.6 kW |
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Mechanical| (no label) | Two- or four-wheel drive |
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| Final drives | inboard planetary |
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| Differential lock | electro-hydraulic |
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| Steering | hydrostatic power |
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| (no label) | Hydraulic wet disc brakes |
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| (no label) | ROPS. Cab optional with air-conditioning. |
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Hydraulics| ROPS Type | open center |
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| Cab Type | closed center load sensing |
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| Pressure | 2900 psi | 200.0 bar |
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| Valves | 2 to 4 |
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| Pump flow | 26.4 gpm (open center) | 99.9 lpm |
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| Pump flow | 29 gpm (CCLS) | 109.8 lpm |
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Hitch| Rear Type | II |
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| Control | electronic top-link draft control |
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| Rear lift (at 24"/610mm) | 7285 lbs | 3304 kg |
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| Rear Arms | telescopic stabilizers and link ends |
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Pto| Rear PTO | independent |
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| Clutch | electro-hydraulic wet disc |
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| Rear PTO Type | 540/1000 |
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| Rear PTO Type | 540/540E/1000/1000E |
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Dimensions| Wheelbase | 97 inches | 246 cm |
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| Weight | 8840 to 9445 pounds |
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| Front tire | 10.00-16 |
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| Rear tire | 480/70R38 |
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Electrical| Ground | negative |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Caterpillar 3054T |
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| (no label) | turbocharged diesel |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled vertical |
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| (no label) | This engine was alternative branded as a Perkins 1104C depending on market. |
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| Displacement | 268 ci | 4.4 L |
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| Bore/Stroke | 4.134x5.00 inches | 105 x 127 mm |
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| Emissions | Tier 2 |
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| Power | 85 hp | 63.4 kW |
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| Air cleaner | dual paper elements |
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| Compression | 17.5:1 |
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| Rated RPM | 2200 |
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| Starter volts | 12 |
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Transmission
Transmission| Transmission | Autopower IV |
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| Type | four speed power shift |
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| Gears | 16 forward and reverse |
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| Clutch | wet disc |
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| (no label) | Four power shift gears in four ranges. |
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Dimensions
Tires| Ag front | 10.00-16 (2WD) |
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| Ag front | 13.6R28 (4WD) |
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| Ag rear | 480/70R38 |
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Dimensions| Wheelbase | 97 inches | 246 cm |
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| Weight | 8,840 lbs (2WD) | 4009 kg |
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| Weight | 9,445 lbs (4WD) | 4284 kg |
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| (no label) | Flange rear axle |
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