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Challenger MT845B

Challenger MT845B tractor
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The Challenger MT845B is an agricultural crawler tractor produced from 2005 to 2008 as part of the MT800B Series. Manufactured by Challenger, a part of AGCO, it was built in Jackson, Minnesota, USA. It features a Caterpillar C15 turbocharged 6-cylinder diesel engine with 400 hp gross power, a 16-speed full power shift Cat Powershift transmission, and crawler drive. The tractor includes hydraulic wet disc brakes, a cab with air-conditioning, and a closed center PFC hydraulic system with up to 59 gpm optional flow. It has a rear hitch type III/IVN with 19500 lbs lift capacity and an independent 1000 rpm rear PTO. Dimensions include a 118-inch wheelbase, 265.9-inch length, and weights ranging from 41000 to 43075 lbs operating weight. Track widths are available in 27.5, 30, and 36 inches. Electrical system features 4 batteries with 185 amp charging and 12 volts.
Challenger MT845Btractorcrawler tractorCaterpillar C15 engine400 hpMT800B Seriesagricultural tractortransmissionhydraulicsdimensions
Power400 hp
Founded2005 - 2008
ModelMT845B

Technical Specifications

Detailed specifications and technical data for Challenger MT845B

Power

PTO (tested):402.32 hp (300.0 kW)
PTO (claimed):335 hp (249.8 kW)
Engine (gross):400 hp (298.3 kW)
Drawbar (tested):313.27 hp (233.6 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), Optional 330 gal (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):400 hp (298.3 kW)
Starter volts:12

Tracks

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

Weight

Shipping:41000 lbs (18597 kg)
Operating:43075 lbs (19538 kg)
Max capacity:50000 lbs (22680 kg)

Dimensions

Width:140.9 inches (357 cm)
Height:138.1 inches (350 cm)
Length:265.9 inches (675 cm)
Wheelbase:118 inches (299 cm)
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), Optional 59 gpm (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:full power shift
Gears:16 forward and 4 reverse
Model:Cat Powershift
Clutch:hydraulic wet disc

Tractor hitch

Rear Type:III/IVN
Rear lift:19500 lbs (8845 kg)

Power Take-off (PTO)

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

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