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Challenger MT855B

Challenger MT855B tractor
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The Challenger MT855B is an agricultural crawler tractor produced from 2005 to 2008 as part of the MT800B Series. Manufactured by Challenger, a part of AGCO, and built in Jackson, Minnesota, USA, it features a powerful Caterpillar C15 turbocharged diesel engine with 460 hp gross power. The tractor is equipped with a Cat Powershift full power shift transmission with 16 forward and 4 reverse gears. It has a crawler drive, hydraulic wet disc brakes, and a standard cab with air-conditioning. The MT855B offers robust hydraulics with closed center PFC, a rear hitch type III/IVN with 19,500 lbs lift capacity, and an independent 1000 rpm rear PTO. Dimensions include a 118-inch wheelbase, 265.9-inch length, and a shipping weight of 41,000 lbs. Track width options are 27.5, 30, and 36 inches. Electrical system features 4 batteries with 1000 CCA and 185 amps charging. This model is related to the MT855C, MT845B, and MT865B models.
Challenger MT855Btractorcrawler tractorCaterpillar C15 engine460 hpMT800B Seriesagricultural tractorpower shift transmissiontractor specifications
Power460 hp
Founded2005 - 2008
ModelMT855B

Technical Specifications

Detailed specifications and technical data for Challenger MT855B

Power

PTO (tested):465.26 hp (346.9 kW)
PTO (claimed):385 hp (287.1 kW)
Engine (gross):460 hp (343.0 kW)
Drawbar (tested):358.14 hp (267.1 kW)

Engine

Type:turbocharged diesel
Model:Caterpillar C15
Torque:1423 lb-ft (1929.6 Nm)
Cooling:liquid-cooled inline
Cylinders:6-cylinder 24-valve
Emissions:Tier III
Fuel tank:305 gal (1154.4 L), 330 gal Optional (1249.0 L)
Rated RPM:2100
Torque RPM:1300
Air cleaner:dual paper elements
Bore/Stroke:5.402x6.752 inches (137 x 172 mm)
Compression:16.5:1
Displacement:928 ci (15.2 L)
Power (gross):460 hp (343.0 kW)
Starter volts:12

Tracks

Width options:27.5 inches (69 cm), 30 inches (76 cm), 36 inches (91 cm)

Dimensions

Width:140.9 inches (357 cm)
Height:138.1 inches (350 cm)
Length:265.9 inches (675 cm)
Wheelbase:118 inches (299 cm)
Max weight:50000 lbs (22680 kg)
Shipping weight:41000 lbs (18597 kg)
Ground clearance:14.4 inches (36 cm)

Electrical

Ground:negative
Batteries:4
Battery CCA:1000
Battery volts:12
Charging amps:185

Hydraulics

Type:closed center PFC
Pressure:2900 psi (200.0 bar)
Total flow:43.5 gpm (164.6 lpm), 59 gpm Optional (223.3 lpm)
Rear valves:4 to 6

Mechanical

Cab:standard with air-conditioning
Drive:crawler
Brakes:Hydraulic wet disc brakes

Production

Type:Agricultural Crawler tractor
Series:MT800B Series
Built in:Jackson, Minnesota, USA
Years produced:2005 - 2008

Transmission

Type:Cat Powershift full power shift
Gears:16 forward and 4 reverse

Tractor hitch

Rear Type:III/IVN
Rear lift:19,500 lbs (8845 kg)

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:1000 (1.75)

Related Models

Challenger MT855C

Model:MT855C

Challenger MT845B

Model:MT845B

Challenger MT865B

Model:MT865B