Challenger MT555B
The Challenger MT555B is a powerful four-wheel drive tractor built for tough farm work. It has a strong Perkins Diesel engine with 6 cylinders and 171.4 horsepower. This engine is turbocharged and liquid-cooled, which helps it run smoothly in different conditions. The tractor uses diesel fuel and has a big fuel tank to keep working for a long time. This tractor is big and heavy, weighing 14,320 pounds. It has an AutoPower VI transmission with 24 forward and 24 reverse gears, giving the driver lots of options for different tasks. The MT555B has a strong hydraulic system that can lift up to 11,230 pounds with its rear hitch. It also has big tires - 16.9R30 in the front and 480/80R46 in the back - which help it move well in fields. The tractor has wet disc brakes that work well even in muddy conditions.
Quick specs
- Category
- Utility
- Engine Power Output
- 171hp
- Operating Weight
- 14,320 lb
- Transmission
- AutoPower VI
At a glance
How the MT555B compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
This model
The MT555B ranks at the 94th percentile for engine power among recorded utility tractors.
Overview
About the Challenger MT555B
The Challenger MT555B is a powerful four-wheel drive tractor built for tough farm work. It has a strong Perkins Diesel engine with 6 cylinders and 171.4 horsepower. This engine is turbocharged and liquid-cooled, which helps it run smoothly in different conditions. The tractor uses diesel fuel and has a big fuel tank to keep working for a long time. This tractor is big and heavy, weighing 14,320 pounds. It has an AutoPower VI transmission with 24 forward and 24 reverse gears, giving the driver lots of options for different tasks. The MT555B has a strong hydraulic system that can lift up to 11,230 pounds with its rear hitch. It also has big tires - 16.9R30 in the front and 480/80R46 in the back - which help it move well in fields. The tractor has wet disc brakes that work well even in muddy conditions.
Full specifications
Every recorded spec
General
| Manufacturer | Challenger |
|---|---|
| Model | MT555B |
| Category | Utility tractor |
| Type | 4WD |
| Operating weight | 14,320lb |
Engine
| Make | Perkins Diesel |
|---|---|
| Model | VK 31483 |
| Power | 171.4hp |
| Cylinders | 6 |
| Displacement | 366ci |
| Bore | 4.13in |
| Stroke | 5in |
Transmission
| Type | AutoPower VI |
|---|---|
| Forward gears | 24 |
| Reverse gears | 24 |
Chassis & drive
| Chassis | 4WD |
|---|---|
| Drive | Four-Wheel Drive |
| Brakes | Multiple wet disc brakes hydraulically operated |
Hydraulics
| Type | Hydraulic control system direct engine drive |
|---|---|
| Pump flow | 32.2gpm |
Dimensions
| Length | 182.3in |
|---|---|
| Width | 81.1in |
| Height | 117.1in |
| Operating weight | 14,320lb |
Tires
| Front | 16.9R30 |
|---|---|
| Rear | 480/80R46 |
Capacities
| Cooling system | 7.4gal |
|---|
Head to head
MT555B vs. Utility median
How the Challenger MT555B compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 171 hp | 55 hp | +212% | 94th |
| Engine Displacement | 366 ci | 183 ci | +100% | 88th |
| Cylinders | 6 | 4 | +50% | 93rd |
| Forward Gears | 24 | 12 | +100% | 92nd |
| Operating Weight | 14,320 lb | 5,303 lb | +170% | 93rd |
| Length | 182 in | 137 in | +33% | 91st |
| Width | 81.1 in | 66 in | +23% | 83rd |
| Height | 117 in | 94.1 in | +24% | 93rd |
| 3-Point Hitch Capacity | 11,230 lb | 3,197 lb | +251% | 90th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 1,083–5,720 models).
Compare to tractors with similar specs
Commonly compared Challenger tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Challenger MT545E | 165 hp | — | — | Compare → |
| Challenger MT585B | 180.88 hp | 17,860 lb | — | Compare → |
| Challenger MT535E AutoPower 6 | 185 hp | 17,360 lb | — | Compare → |
| Challenger MT545D | 152.1 hp | 14,770 lb | — | Compare → |
| Challenger MT495D | 150 hp | 15,765 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| AGCO RT140 | 170 hp | — | — | Compare → |
| Allis Chalmers 8070 | 170 hp | 16,850 lb | 1982–1985 | Compare → |
| CaseIH 7130 | 170 hp | 16,280 lb | 1987–1993 | Compare → |
| CaseIH 7230 | 170 hp | 17,790 lb | 1994–1996 | Compare → |
| Allis Chalmers 8050 | 169 hp | 15,305 lb | 1982–1985 | Compare → |
Explore
Challenger siblings
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FAQ
Common questions
How powerful is the Challenger MT555B?
The Challenger MT555B has an engine power output of 171.4 hp. It is powered by a 6-cylinder engine displacing 366 ci.
What three-point hitch category does the Challenger MT555B use?
The Challenger MT555B has a Category II/III three-point hitch rated to lift 11,230 lb.
What is the working weight of the Challenger MT555B?
The operating weight of the Challenger MT555B is approximately 14,320 lb.
What type of transmission does the Challenger MT555B have?
The Challenger MT555B uses an AutoPower VI transmission offering 24 forward gears.
What hydraulics does the Challenger MT555B have?
The Challenger MT555B uses a Hydraulic control system direct engine drive hydraulic system with a pump flow of 32.2 gpm.
What are the factory tire sizes for the Challenger MT555B?
The Challenger MT555B comes with 16.9R30 front tires and 480/80R46 rear tires.
What routine service does the Challenger MT555B need?
Regular maintenance for the Challenger MT555B includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.




