Challenger MT855
Power
450 hp
Production
2002-2004
Engine
Turbocharged diesel, 6-cylinder
Transmission
Caterpillar
From the same series:
Introduction
Challenger MT855 Agricultural Crawler Tractor
The Challenger MT855 is a high-horsepower crawler tractor produced between 2002 and 2004 in the United States. Designed for heavy-duty agricultural operations, this machine belongs to the MT800 series and is engineered to provide high tractive effort in demanding field conditions.
Engine and Performance
The tractor is powered by a Caterpillar C16 engine, a 14.6-liter, 6-cylinder liquid-cooled turbocharged diesel unit. It delivers a gross power output of 450 horsepower at a rated speed of 2100 RPM. The engine features a compression ratio of 15.8:1 and utilizes a dual-element paper air cleaner system for operation in dusty environments.
Transmission and Drive System
The MT855 utilizes a crawler drive system featuring 18-inch tracks, which provides stability and traction on varied soil surfaces. Power is transferred through a Caterpillar full power shift transmission, offering 16 forward and 4 reverse gears. The system includes a hydraulic wet disc clutch, facilitating smooth gear transitions under load.
Hydraulics and Hitch
The hydraulic system is of the closed-center load-sensing type, designed to maintain efficiency during implement operation. It provides a primary pump flow of 43.5 gpm (164.6 lpm) with a system pressure of 2900 psi. The tractor is equipped with 4 to 6 rear valves and features a Category IVN rear hitch with a lift capacity of 19,500 lbs (8,845 kg).
Operational Specifications
The machine operates with a wheelbase of 118.1 inches and has a base weight of 41,000 lbs (18,597 kg). Operator comfort is supported by a standard cab equipped with air conditioning. Steering is managed via a power steering system, and braking is handled by hydraulic wet disc brakes.
Conclusion
With its high-displacement Caterpillar engine, tracked undercarriage, and substantial hydraulic capacity, the Challenger MT855 is suited for heavy tillage and large-scale agricultural traction tasks where ground pressure and high drawbar pull are critical requirements.
Production Information of Challenger, MT855
- Agricultural Crawler tractor
- Built in USA
| Manufacturer | Challenger (a part of AGCO) |
|---|
Engine Specifications of Challenger, MT855
- Caterpillar C16
- Liquid-cooled inline
- Turbocharged diesel
- 6-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 893 ci [14.6 L] |
| Air cleaner | Dual paper elements |
| Bore/Stroke | 5.402x6.50 inches [137 x 165 mm] |
| Rated RPM | 2100 |
| Compression | 15.8:1 |
| Power (gross) | 450 hp [335.6 kW] |
Transmission Information of Challenger, MT855
Transmission variants 1
| Transmission | Caterpillar |
|---|---|
| Clutch | Hydraulic wet disc |
| Type | Full power shift |
| Gears | 16 forward and 4 reverse |
Mechanical Specs of Challenger, MT855
- Cab standard with air-conditioning.
- Power steering
- Hydraulic wet disc brakes
| Drive | Crawler |
|---|
Power Information of Challenger, MT855
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 (1.75) |
Hydraulics Specifications of Challenger, MT855
| SCV flow | 30 gpm [113.6 lpm] |
|---|---|
| Type | Closed center load sensing |
| Pump flow | 43.5 gpm [164.6 lpm] |
| Rear valves | 4 to 6 |
| Capacity | 70 gal [264.9 L] |
| Capacity(optional) | 59 gpm [223.3 lpm] |
| Pressure | 2900 psi [200.0 bar] |
Three-Point Hitch of Challenger, MT855
| Rear Type | IVN |
|---|---|
| Rear lift | 19500 lbs [8845 kg] |
Electrical System of Challenger, MT855
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Batteries | 4 |
| Charging system | Alternator |
| Charging amps | 160 |
Where it sits
With 450 HP, the Challenger MT855 sits between MT845 (380 HP) and MT865 (500 HP) in Challenger's range. Its power puts it in the 98th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the Challenger MT855 have?
The Challenger MT855 delivers 450 HP.
What years was the Challenger MT855 produced?
The Challenger MT855 was produced in 2002-2004.
What engine does the Challenger MT855 have?
The Challenger MT855 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the Challenger MT855 use?
The Challenger MT855 uses a Caterpillar transmission.