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Challenger MT445B

Challenger MT445B tractor
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The Challenger MT445B is a utility tractor produced from 2004 to 2013 as part of the MT400B Series. It was built in Beauvais, France by Challenger, a part of AGCO. The tractor is similar to the Massey Ferguson 5445. It features a Caterpillar 4.4L 4-cylinder turbocharged diesel engine, producing 85 hp (63.4 kW). The transmission is an Autopower IV 16-speed four speed power shift with a wet disc clutch. The tractor offers two- or four-wheel drive options, hydrostatic power steering, and hydraulic wet disc brakes. It has a wheelbase of 97 inches (246 cm) and weighs between 8,840 lbs (2WD) and 9,445 lbs (4WD). The PTO is independent with electro-hydraulic wet disc clutch and offers multiple speed options. The tractor includes advanced hydraulics with open and closed center systems and electronic top-link draft control for the rear hitch. The MT445B is part of a series including the MT425B and MT455B models.
Challenger MT445BtractorspecificationsCaterpillar 3054T engineAutopower IV transmissionutility tractorfarm tractor
Power85 hp
Founded2004 - 2013
ModelMT445B

Technical Specifications

Detailed specifications and technical data for Challenger MT445B

Power

Engine power:85 hp (63.4 kW)
PTO (tested):75.9 hp (56.6 kW)
PTO (claimed):70 hp (52.2 kW)
Drawbar (tested):60.5 hp (45.1 kW)

Tires

Ag rear:480/70R38
Ag front:10.00-16 (2WD), 13.6R28 (4WD)

Engine

Type:turbocharged diesel
Model:Caterpillar 3054T
Power:85 hp (63.4 kW)
Cooling:liquid-cooled vertical
Cylinders:4-cylinder
Emissions:Tier 2
Rated RPM:2200
Air cleaner:dual paper elements
Bore/Stroke:4.134x5.00 inches (105 x 127 mm)
Displacement:268 ci (4.4 L)
Starter volts:12
Compression ratio:17.5:1
Alternative branding:Perkins 1104C depending on market

Dimensions

Weight:8,840 lbs (2WD) (4009 kg), 9,445 lbs (4WD) (4284 kg)
Wheelbase:97 inches (246 cm)
Flange rear axle:yes

Electrical

Ground:negative
Battery volts:12

Hydraulics

Valves:2 to 4
Cab Type:closed center load sensing
Pressure:2900 psi (200.0 bar)
Pump flow:26.4 gpm (open center) (99.9 lpm), 29 gpm (CCLS) (109.8 lpm)
ROPS Type:open center

Mechanical

ROPS:ROPS. Cab optional with air-conditioning.
Drive:Two- or four-wheel drive
Brakes:Hydraulic wet disc brakes
Steering:hydrostatic power
Final drives:inboard planetary
Differential lock:electro-hydraulic

Production

Type:Utility tractor
Notes:The Challenger MT445B is similar to the Massey Ferguson 5445.
Series:MT400B Series
Built in:Beauvais, France
Years made:2004 - 2013

Transmission

Type:four speed power shift
Gears:16 forward and reverse
Notes:Four power shift gears in four ranges.
Clutch:wet disc
Transmission:Autopower IV

Tractor hitch

Control:electronic top-link draft control
Rear Arms:telescopic stabilizers and link ends
Rear Type:II
Rear Lift (at 24"/610mm):7285 lbs (3304 kg)

Power Take-off (PTO)

Clutch:electro-hydraulic wet disc
Rear PTO:independent
Rear PTO Type:540/1000, 540/540E/1000/1000E

Related Models

Challenger MT425B

Model:MT425B

Challenger MT455B

Model:MT455B

Challenger MT445

Model:MT445