Challenger
Challenger MT255B
The Challenger MT255B 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 liquid-cooled diesel engine producing 28.4 hp gross and 28 hp net. The tractor offers hydrostatic and 9-speed gear transmission options, four-wheel drive with mechanical rear differential lock, power steering, and wet disc brakes. It has a two-post foldable ROPS and is built in Matsuyama, Japan. The MT255B supports various attachments including front-end loaders and backhoes, with detailed specifications for the ML20B loader and MH10B backhoe. It has a fuel capacity of 7.9 gallons and hydraulic systems with open center type and optional valves. Dimensions include a 65.5 inch wheelbase, 112.4 inch length, and a minimum width of 50.6 inches. The tractor weighs between 2370 and 2423 pounds depending on configuration.
Power28 hp
Founded2005 - 2008
ModelMT255B
Technical Specifications
Detailed specifications and technical data for Challenger MT255B
Power
| Engine (net) | 28 hp (20.9 kW) |
|---|---|
| Engine (gross) | 28.4 hp (21.2 kW) |
| Gear PTO (claimed) | 24.2 hp (18.0 kW) |
| Hydro PTO (claimed) | 22.3 hp (16.6 kW) |
Engine
| Type | diesel |
|---|---|
| Model | Iseki E3CF |
| Cooling | liquid-cooled |
| Idle RPM | 930-2750 |
| Cylinders | 3-cylinder |
| Rated RPM | 2500 |
| Air cleaner | dual-stage dry |
| Bore/Stroke | 3.39x3.30 inches (86 x 84 mm) |
| Fuel system | indirect injection |
| Power (net) | 28 hp (20.9 kW) |
| Pre-heating | glow plugs |
| Displacement | 89.3 ci (1.5 L) |
| Oil capacity | 3.8 qts (3.6 L) |
| Power (gross) | 28.4 hp (21.2 kW) |
| Starter volts | 12 |
| Coolant capacity | 5.8 qts (5.5 L) |
Capacity
| Fuel | 7.9 gal (29.9 L) |
|---|---|
| Gear Hydraulic system | 4.8 gal (18.2 L) |
| Hydro Hydraulic system | 7.7 gal (29.1 L) |
Variants
| 1528 | similar Massey Ferguson model |
|---|
Electrical
| Ground | negative |
|---|---|
| Battery CCA | 582 |
| Battery volts | 12 |
| Charging amps | 40 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Pressure | 2134 psi (147.1 bar) |
| Pump flow | 7.4 gpm (28.0 lpm) |
| Mid valves | 2 Optional |
| Total flow | 10.0 gpm (37.9 lpm) |
| Rear valves | 2 Optional |
| Gear Capacity | 4.8 gal (18.2 L) |
| Steering flow | 2.6 gpm (9.8 lpm) |
| Hydro Capacity | 7.7 gal (29.1 L) |
| Steering pressure | 1711 psi (118.0 bar) |
Mechanical
| ROPS | Two-post foldable ROPS |
|---|---|
| Drive | Four-wheel drive |
| Brakes | Wet disc brakes |
| Final drives | spur gear |
| Power steering | 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
| Backhoe | Yes |
|---|---|
| ML20B Loader | Dump time2.2s Dump angle44° Lower time3.2s Raise time5.5s Bucket width51 inches (129 cm) Rollback time3s Reach (dumped)16 inches (40 cm) Reach (ground)52 inches (132 cm) Rollback angle17° Height (at pin)90 inches (228 cm) Breakout (at pin)2387 lbs (1082 kg) Clearance (dumped)71 inches (180 cm) Lift (full at pin)1188 lbs (538 kg) Lift (1.5m at 500mm)1139 lbs (516 kg) Lift (full at 500mm)813 lbs (368 kg) |
| Front-end loader | Yes |
| Challenger MH10B Backhoe | Swing Arc180° Backhoe typeChallenger MH10B Backhoe Bucket width10 inches (25 cm), 12 inches (30 cm), 16 inches (40 cm) Digging depth78 inches (198 cm) Bucket Rotation165° Reach from pivot102 inches (259 cm) Transport height63.8 inches (162 cm) |
Transmission
| Gear | Typegear Gears9 forward and 3 reverse NotesThree non-synchronized gears (1-3), plus reverse (R) in three non-synchronized ranges. Clutchdry dual stage Oil capacity19 qts (18.0 L) |
|---|---|
| Options | hydrostatic, 9-speed gear |
| Hydrostatic | Typehydrostatic Gearsinfinite forward and reverse (3-range) Oil capacity30.6 qts (29.0 L) |
Tractor hitch
| Control | position and response control |
|---|---|
| Rear Arms | fixed link ends |
| Rear Type | I |
| Rear lift (at ends) | 2425 lbs (1099 kg) |
| Top-link draft control | Optional, with hydrostatic transmission |
| Rear lift (at 24"/610mm) | 1610 lbs (730 kg) |
Dimensions & Tires
| Width | 50.6 inches (128 cm) Minimum width |
|---|---|
| Length | 112.4 inches (285 cm) |
| Weight | 2370 to 2423 pounds |
| Rear tire | 9.5-24 |
| Wheelbase | 65.5 inches (166 cm) |
| Front tire | 7-14 |
| Rear tread | 37.6 inches (95 cm) |
| Front tread | 39.6 inches (100 cm) |
| Ag rear tire | 9.5-24 |
| Max capacity | 4145 lbs (1880 kg) |
| Ag front tire | 7-14 |
| Height (ROPS) | 80.7 inches (204 cm) |
| Max rear axle | 2216 lbs (1005 kg) |
| Max front axle | 1929 lbs (874 kg) |
| Ground clearance | 10 inches (25 cm) |
| Lawn/turf rear tire | 36x13.50-15 |
| Gear Shipping weight | 2370 lbs (1075 kg) |
| Industrial rear tire | 12.50/80-18 |
| Lawn/turf front tire | 24x8.50-14 |
| Hydro Shipping weight | 2423 lbs (1099 kg) |
| Industrial front tire | 25x8.50-14 |
| Rear axle flange length | 37.4 inch (949 mm) |
| Front axle flange length | 39.34 inch (999 mm) |
Power Take-off (PTO)
| Gear Clutch | dry disc |
|---|---|
| Gear Mid PTO | live |
| Hydro Clutch | electro-hydraulic wet disc |
| Mid PTO Type | 2000 (1.00) |
| Gear Rear PTO | live |
| Hydro Mid PTO | independent |
| Rear PTO Type | 540 (1.375) |
| Hydro Rear PTO | independent |