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Challenger MT851

Challenger MT851 tractor
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The Challenger MT851 is an agricultural crawler tractor in the MT800 Series produced by Challenger, a part of AGCO, starting from 2021. It features a powerful MAN 15.3L 6-cylinder turbocharged diesel engine delivering 504.2 hp (376.0 kW) gross power. The tractor uses an Accu-VT continuously-variable transmission with infinite forward and reverse gears. It has a crawler drive and comes standard with an air-conditioned cab. The MT851 includes advanced hydraulics with closed center pressure-flow compensated system, rear PTO independent at 1000/1000E rpm, and a large fuel tank capacity of 350 gallons. Dimensions include a wheelbase of 118 inches, length of 266 inches, and a weight of 42,000 lbs. Electrical system features a 325 amp alternator and three 12-volt batteries. This model is part of the MT800 Series and is related to the MT856 and the earlier MT845E (2014-2020).
Challenger MT851MT851 tractorChallenger crawler tractorMT800 Seriesagricultural tractor specificationsMAN 15.3L engineAccu-VT transmission
Power504 hp
Founded2021 -
ModelMT851

Technical Specifications

Detailed specifications and technical data for Challenger MT851

Power

Engine (gross):504.2 hp (376.0 kW)

Engine

Type:turbocharged diesel
Model:MAN D3876
Torque:1844 lb-ft (2500.5 Nm)
Cooling:liquid-cooled inline
Starter:electric
Cylinders:6-cylinder
Fuel tank:350 gal (1324.8 L)
Rated RPM:1730
Oil change:500 h
Torque RPM:1450
Bore/Stroke:5.43x6.69 inches (138 x 170 mm)
Displacement:933.7 ci (15.3 L)
Starter volts:24
Exhaust fluid (DEF):35.7 gal (135.1 L)
Rated Power (gross):504.2 hp (376.0 kW)

Dimensions

Gauge:88 to 128 inches (223 to 325 cm)
Width:116.1 inches (Minimum width) (294 cm)
Height:148 inches (375 cm)
Length:266 inches (675 cm)
Weight:42000 lbs (19051 kg)
Wheelbase:118 inches (299 cm)
Max weight:59000 lbs (26762 kg)
Ground clearance:14.1 inches (35 cm)

Electrical

Ground:negative
Batteries:3
Battery volts:12
Charging amps:325
Charging system:alternator

Hydraulics

Type:closed center pressure-flow compensated
Pressure:2900 psi (200.0 bar)
Pump flow:58.1 gpm (219.9 lpm)
Rear valves:4 to 8
Optional pump flow:116.2 gpm (439.8 lpm)

Mechanical

Cab:standard with air-conditioning
Drive:crawler

Production

Type:Agricultural Crawler tractor
Manufacturer:Challenger (a part of AGCO)

Transmission

Type:continuously-variable transmission
Gears:infinite forward and reverse
Transmission:Accu-VT

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:1000/1000E

Related Models

Challenger MT856

Model:MT856

Challenger MT845E

Model:MT845E