Tractor · 2004Unverified
Challenger MT445B
Challenger MT445B — Model year 2004-20072008-2013 · 71 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
71 hp
Max power
56.6 kW
Weight
8840 to 9445 pounds
Hover a source tag to verify
Overview
ManufacturerChallenger (a part of AGCO)Reference
Utility tractorReference
Built in Beauvais, FranceReference
The Challenger MT445B is similar to the Massey Ferguson 5445.Reference
Two- or four-wheel driveReference
Final drivesinboard planetaryReference
Differential lockelectro-hydraulicReference
Steeringhydrostatic powerReference
Hydraulic wet disc brakesReference
ROPS. Cab optional with air-conditioning.Reference
Engine
Caterpillar 4.4L 4-cyl dieselReference
Fuel tank151.4 LReference
Engine63.4 kWReference
Drawbar (tested)45.1 kWReference
Caterpillar 3054TReference
turbocharged dieselReference
4-cylinderReference
liquid-cooled verticalReference
This engine was alternative branded as a Perkins 1104C depending on market.Reference
Displacement4.4 LReference
Bore/Stroke105 x 127 mmReference
EmissionsTier 2Reference
Power63.4 kWReference
Air cleanerdual paper elementsReference
Compression17.5:1Reference
Rated RPM2200Reference
Starter volts12Reference
Max power56.6 kWReference
Power at rated engine speed52.7 kWReference
Max power45.1 kWReference
Transmission
16-speed four speed power shiftReference
TransmissionAutopower IVReference
Typefour speed power shiftReference
Gears16 forward and reverseReference
Clutchwet discReference
Four power shift gears in four ranges.Reference
PTO & Hydraulics
PTO (claimed)52.2 kWReference
PTO (tested)56.6 kWReference
ROPS Typeopen centerReference
Cab Typeclosed center load sensingReference
Pressure200.0 barReference
Valves2 to 4Reference
Pump flow99.9 lpmReference
Pump flow109.8 lpmReference
Rear TypeIIReference
Controlelectronic top-link draft controlReference
Rear lift (at 24"/610mm)3304 kgReference
Rear Armstelescopic stabilizers and link endsReference
Rear PTOindependentReference
Clutchelectro-hydraulic wet discReference
Rear PTO Type540/1000Reference
Rear PTO Type540/540E/1000/1000EReference
Power at rated PTO speed54.7 kWReference
Dimensions
Wheelbase246 cmReference
Weight8840 to 9445 poundsReference
Front tire10.00-16Reference
Rear tire480/70R38Reference
Ag front10.00-16 (2WD)Reference
Ag front13.6R28 (4WD)Reference
Ag rear480/70R38Reference
Weight4009 kgReference
Weight4284 kgReference
Flange rear axleReference
Electrical
GroundnegativeReference
Battery volts12Reference
Test results
Diesel 16-speed 4WDSeptember 2004 - 2004, Link: OCED Tractor Test 2291 fileReference
PTO performanceReference
Fuel use17.8 l/hourReference
Fuel use18.9 l/hourReference
Fuel use18.2 l/hourReference
Drawbar performanceReference
Fuel use18.5 l/hourReference
Gear 1LC used for power test.Reference
Max pull3937 kgReference
Gear 2TC used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.