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Challenger MT445

Challenger MT445 tractor
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The Challenger MT445 is a utility tractor produced from 2002 to 2004 as part of the MT400 Series. Built in England by Challenger (a part of AGCO), it features a Perkins 4.2L 4-cylinder diesel engine and offers multiple transmission options including a 24-speed power shuttle. The tractor is equipped with hydraulic wet disc brakes, power steering, and a two-post folding ROPS with an optional air-conditioned cab. It has a PTO power of 65 hp (claimed) and tested drawbar power of 60.2 hp. The MT445 is similar to the Massey Ferguson 4233 and 4335 models.
Challenger MT445MT445 tractorChallenger tractorsutility tractorPerkins 4.2L engineMT400 Seriesfarm tractor specs
Power72 hp[P]
Founded2002 - 2004
ModelMT445

Technical Specifications

Detailed specifications and technical data for Challenger MT445

Power

PTO (tested):69.7 hp (52.0 kW)
PTO (claimed):65 hp (48.5 kW)
Drawbar (tested):60.2 hp (44.9 kW)

Tires

Ag rear:13.6R38
Ag front:12.4R24

Engine

Type:diesel
Model:Perkins 3054B
Cooling:liquid-cooled
Cylinders:4-cylinder
Rated RPM:2200
Air cleaner:dual paper elements
Bore/Stroke:4.055x5.00 inches (103 x 127 mm)
Pre-heating:thermostart
Displacement:258 ci (4.2 L)
Starter volts:12
Fuel tank (Cab):34 gal (128.7 L)
Fuel tank (ROPS):29.1 gal (110.1 L)
Compression ratio:17.3:1
Fuel tank (Optional with cab):50 gal (189.2 L)

Weight

2WD Cab:7619 lbs (3455 kg)
4WD Cab:8170 lbs (3705 kg)
2WD ROPS:6211 lbs (2817 kg)
4WD ROPS:6546 lbs (2969 kg)

Dimensions

Width:77 inches (195 cm)
Length:163 inches (414 cm)
Wheelbase:93 inches (236 cm)
Height (cab):100 inches (254 cm)
Height (ROPS):103 inches (261 cm)
Height (Folded ROPS):78 inches (198 cm)

Electrical

Ground:negative
Battery volts:12
Charging system:alternator

Hydraulics

Type:open center
Valves:2 to 4
Pressure:3046 psi (210.0 bar)
SCV flow:10 gpm (37.9 lpm)
Total flow:25 gpm (94.6 lpm)

Production

Type:Utility tractor
Notes:The Challenger MT445 is similar to the Massey Ferguson 4233 and 4335.
Series:MT400 Series
Built in:England
Years made:2002 - 2004

Transmission

Options:24-speed power shuttle, 12-speed syncromesh, 12-speed mechanical shuttle

Syncromesh

Type:syncromesh
Gears:12 forward and 4 reverse

Power shuttle

Type:power shuttle
Gears:24 forward and reverse
Clutch:wet disc

Mechanical shuttle

Type:mechanical shuttle
Gears:12 forward and reverse

Tractor hitch

Control:electronic draft control
Rear Type:II
Optional rear lift:6200 lbs (2812 kg)
Rear lift (at 24"/610mm):4100 lbs (1859 kg)

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:540/1000

Related Models

Challenger MT445B

Model:MT445B

Challenger MT425

Model:MT425

Challenger MT455

Model:MT455