Challenger

Challenger MT275B

The Challenger MT275B is a compact utility tractor built by Iseki and distributed by Challenger (a part of AGCO) from 2005 to 2008. It features a 1.5L 3-cylinder turbocharged diesel engine producing 40.1 hp gross and 38 hp net. The tractor offers multiple transmission options including hydrostatic, 8-speed SynchroShuttle, and 12-speed PowerShuttle with power shuttle. It has four-wheel drive with mechanical rear differential lock, power steering, wet disc brakes, and a two-post foldable ROPS. The MT275B supports various attachments such as front-end loaders and backhoes, with detailed specifications for the ML30B loader and MH20B backhoe. It is built in Matsuyama, Japan, and has a fuel capacity of 10.6 gallons. The tractor's dimensions include a 69.7 inch wheelbase, 121 inch length, and 62.2 inch minimum width. It weighs 3169 lbs with a maximum capacity of 6614 lbs.

Power40 hp

Founded2005 - 2008

ModelMT275B

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Technical Specifications

Detailed specifications and technical data for Challenger MT275B

Power

Engine (net)	38 hp (28.3 kW)
Engine (gross)	40.1 hp (29.9 kW)
Gear PTO (claimed)	31.550 hp (23.5 kW)
Hydro PTO (claimed)	29.5 hp (22.0 kW)

Engine

Type	turbocharged diesel
Model	Iseki E3CD-VTB10
Cylinders	3-cyl diesel
Displacement	1.5L

Capacity

Fuel	10.6 gal (40.1 L)
Hydraulic system	8.2 gal (31.0 L)

Electrical

Ground	negative
Battery CCA	630
Battery volts	12
Charging amps	40
Charging system	alternator

Hydraulics

Type	open center
Capacity	8.2 gal (31.0 L)
Pressure	2276 psi (156.9 bar)
Pump flow	8.3 gpm (31.4 lpm)
Mid valves	2 Optional
Total flow	12.7 gpm (sync shuttle) (48.1 lpm), 13.7 gpm (power shuttle/hydro) (51.9 lpm)
Rear valves	2 Optional
Steering flow	4.4 gpm (sync shuttle) (16.7 lpm), 5.4 gpm (power shuttle/hydro) (20.4 lpm)
Steering pressure	2276 psi (156.9 bar)

Mechanical

ROPS	Two-post foldable ROPS
Brakes	Wet disc brakes
Final drives	spur gear
Power steering	Yes
Four-wheel drive	Yes
Differential lock	mechanical rear

Production

Type	Compact Utility tractor
Built in	Matsuyama, Japan
Distributor	Challenger (a part of AGCO)
Manufacturer	Iseki
Production years	2005 - 2008

Attachments

Overview	Front-end loader, Backhoe
ML30B Loader	Rollback30° Dump time3.1s Dump angle47° Lower time2.1s Raise time3.5s Bucket width66 inches (167 cm) Rollback time1.9s Reach (dumped)15 inches (38 cm) Reach (ground)58 inches (147 cm) Height (at pin)102 inches (259 cm) Breakout (at pin)2720 lbs (1233 kg) Clearance (dumped)80 inches (203 cm) Lift (full at pin)1632 lbs (740 kg) Lift (1.5m at 500mm)1485 lbs (673 kg) Lift (full at 500mm)1112 lbs (504 kg)
Challenger MH20B Backhoe	Swing Arc180° Backhoe typeChallenger MH20B Backhoe Bucket force3250 lbs (1474 kg) Bucket widths10 inches (25 cm), 12 inches (30 cm), 16 inches (40 cm), 24 inches (60 cm), 37 inches (93 cm) Digging depth90 inches (228 cm) Bucket Rotation165° Reach from pivot112 inches (284 cm) Transport height75 inches (190 cm) Dipperstick force1900 lbs (861 kg)

Transmission

Options	hydrostatic, 8-speed, 12-speed partially synchronized with power shuttle
Hydrostatic	Typehydrostatic Gearsinfinite forward and reverse (3-range) Oil capacity32.8 qts (31.0 L)
PowerShuttle	Typepartially synchronized with power shuttle Gears12 forward and reverse NotesThree ranges with four gears each. Transmission can be shifted from forward to reverse on the go, without the clutch. In-range gear changes can be made on the go with the clutch. Clutchdry main, wet shuttle Oil capacity32.8 qts (31.0 L) TransmissionPowerShuttle
SynchroShuttle	Gears8 forward and reverse NotesFour non-synchronized gears in two non-synchronized ranges, with synchronized shuttle shift. Clutchmechanical dry disc Oil capacity32.8 qts (31.0 L) TransmissionSynchroShuttle

Tractor hitch

Control	position and response control, optional top-link draft control
Rear Arms	fixed link ends (sync shuttle), telescopic link ends (power shuttle/hydro)
Rear Type	I
Rear lift (at ends)	2800 lbs (1270 kg)
Rear lift (at 24"/610mm)	2535 lbs (1149 kg)

Dimensions & Tires

Tires	Ag rear12.4-24, 13.6-24 Ag front8-16 Lawn/turf rear41x14.00-20 Industrial rear14.9-24 Lawn/turf front27x8.50-15 Industrial front10-16.5
Width	62.2 inches (Minimum width) (157 cm)
Length	121 inches (307 cm)
Weight	3169 lbs (1437 kg)
Wheelbase	69.7 inches (177 cm)
Front axle	Flange: 48.8 inch length (1239 mm)
Front tread	45 inches (114 cm)
Max capacity	6614 lbs (3000 kg)
Height (ROPS)	87.4 inches (221 cm)
Max rear axle	3968 lbs (1799 kg)
Max front axle	3968 lbs (1799 kg)
Flange rear axle	44.6 inch length (1132 mm)
Ground clearance	14.1 inches (35 cm)