Challenger

Challenger MT225B

The Challenger MT225B is a compact utility tractor built by Iseki for Challenger (a part of AGCO) from 2005 to 2008. It features a 1.1L 3-cylinder liquid-cooled diesel engine producing 22.5 hp gross and 22 hp net, with a hydrostatic transmission offering infinite forward and reverse speeds in 2 ranges. The tractor has four-wheel drive with spur gear final drives, mechanical rear differential lock, hydrostatic power steering, and wet disc brakes. It includes a two-post fixed ROPS for operator safety. The MT225B has a fuel capacity of 6.6 gallons and an open center hydraulic system with 1990 psi pressure and optional rear and mid valves. The rear hitch is type I with position and response control, and the PTO includes independent rear and standard mid PTO shafts. Dimensions include a 59.8 inch wheelbase, 102 inch length, and 39.4 inch minimum width. The tractor weighs 1609 lbs with a max capacity of 3086 lbs. Electrical system is 12 volts with a 40 amp alternator. Attachments include a front-end loader ML10B with detailed lift and reach specifications.
Power22 hp
Founded2005 - 2008
ModelMT225B

Technical Specifications

Detailed specifications and technical data for Challenger MT225B

Power
Engine (net)22 hp (16.4 kW)
PTO (claimed)17.6 hp (13.1 kW)
Engine (gross)22.5 hp (16.8 kW)
Engine
Typediesel
ModelIseki E3312
Coolingliquid-cooled
Idle RPM1250-2860
Cylinders3-cylinder
Rated RPM2600
Air cleanerdry
Bore/Stroke3.08x3.07 inches (78 x 78 mm)
Compression22.5:1
Fuel systemindirect injection
Power (net)22 hp (16.4 kW)
Pre-heatingglow plugs
Displacement68.5 ci (1.1 L)
Oil capacity2.9 qts (2.7 L)
Power (gross)22.5 hp (16.8 kW)
Starter volts12
Coolant capacity7.5 qts (7.1 L)
Weight
Weight1609 lbs (729 kg)
Max capacity3086 lbs (1399 kg)
Max rear axle1653 lbs (749 kg)
Max front axle1433 lbs (650 kg)
Capacity
Fuel6.6 gal (25.0 L)
Front diff.2.9 qts (2.7 L)
Electrical
Groundnegative
Battery CCA435
Battery volts12
Charging amps40
Charging systemalternator
Hydraulics
Typeopen center
Pressure1990 psi (137.2 bar)
Pump flow5.5 gpm (20.8 lpm)
Mid valves2 Optional
Total flow8.1 gpm (30.7 lpm)
Rear valves2 Optional
Steering flow2.64 gpm (10.0 lpm)
Steering press.1493 psi (102.9 bar)
Mechanical
ROPSTwo-post fixed ROPS
DriveFour-wheel drive
BrakesWet disc brakes
Steeringhydrostatic power
Final drivesspur gear
Differential lockmechanical rear
Production
TypeCompact Utility tractor
Built inMatsuyama, Japan
DistributorChallenger (a part of AGCO)
ManufacturerIseki
Production years2005 - 2008
Attachments
Loaderfront-end loader
ML10B Loader
Dump time4.8s
Dump angle51°
Lower time4s
Raise time6s
Bucket width48 inches (121 cm)
Reach dumped22 inches (55 cm)
Reach ground51 inches (129 cm)
Height at pin74 inches (187 cm)
Rollback time4.3s
Rollback angle23°
Breakout at pin1854 lbs (840 kg)
Clearance dumped53.9 inches (136 cm)
Lift full at pin875 lbs (396 kg)
Lift 1.5m at 500mm741 lbs (336 kg)
Lift full at 500mm624 lbs (283 kg)
Transmission
Typehydrostatic
Gearsinfinite forward and reverse (2-range)
Oil capacity14.8 qts (14.0 L)
Tractor hitch
Controlposition and response control
Rear Armsfixed link ends
Rear TypeI
Rear lift (at ends)1190 lbs (539 kg)
Rear lift (at 24"/610mm)591 lbs (268 kg)
Dimensions & Tires
Width39.4 inches Minimum width. (100 cm)
Length102 inches (259 cm)
Ag rear9.5-16
Ag front6-12
Rear tire9.5-16
Wheelbase59.8 inches (151 cm)
Front axleFlange: 34.58 inch length (878 mm)
Front tire6-12
Rear tread35.6 inches (90 cm)
Front tread35.6 inches (90 cm)
Height (ROPS)77 inches (195 cm)
Lawn/turf rear33x12.50-16.5
Industrial rear12x16.5
Lawn/turf front23x10.50-12
Flange rear axle33.62 inch length (853 mm)
Ground clearance10.4 inches (26 cm)
Industrial front23x8.50-12
Power Take-off (PTO)
Clutchelectro-hydraulic wet disc
Mid PTOstandard
Rear PTOindependent
Mid PTO Type2000 (1.00)
Rear PTO Type540 (1.375)