Challenger MT856

The Challenger MT856 is a tractor produced by Challenger. It is equipped with a 933.7 ci 15.3 L engine. The listed engine power is Diesel (gross): 556.5 hp / 415.0 kW. Transmission: Accu-VT. Drive type: crawler. Operating weight: 42000 lbs 19051 kg.

Engine Power

Diesel (gross): 556.5 hp / 415.0 kW

Drive & Traction

crawler

Fuel & Capacities

350 gal 1324.8 L

Transmission

Accu-VT

Operating Weight

42000 lbs 19051 kg

Overview

	2021 - MT800 SeriesAgricultural Crawler tractor
2021 -
MT800 Series
Agricultural Crawler tractor

Production
Manufacturer	Challenger (a part of AGCO)
Agricultural Crawler tractor

Variants
1156 Vario MT	similar Fendt model

Challenger MT856 Engine
MAN 15.3L 6-cyl diesel
Fuel tank	350 gal 1324.8 L
Exhaust fluid (DEF)	35.7 gal 135.1 L
Engine details ...

Challenger MT856 Transmission
continuously-variable transmission
Transmission details ...

Challenger MT856 Power
Engine (gross)	556.5 hp 415.0 kW

Mechanical
Drive	crawler
Cab standard with air-conditioning.

Hydraulics
Type	closed center pressure-flow compensated
Pressure	2900 psi 200.0 bar
Rear valves	4 to 8
Pump flow	58.1 gpm 219.9 lpm
	116.2 gpmOptOptional 439.8 lpm

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000/1000E

Dimensions & Tracks
Wheelbase	118 inches 299 cm
Weight	42000 lbs 19051 kg
Tracks
Full dimensions and tracks ...

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

References

MT800 Series published in 2020, by AGCO

Engine

Engine Detail — 933.7 ci / 15.3 L Diesel

Manufacturer	MAN D3876
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled inline
Displacement	933.7 ci 15.3 L
Bore/Stroke	5.43x6.69 inches 138 x 170 mm
Rated Power (gross)	556.5 hp 415.0 kW
Rated RPM	1730
Torque	1991 lb-ft 2699.8 Nm
Torque RPM	1450
Starter	electric
Starter volts	24
Oil change	500 h

Challenger MT856 Engine

Transmission

Transmission — Accu-VT

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

Dimensions

Challenger MT856 Tracks

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

Photos

Challenger MT856 tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT856 based on its 556.5 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁	Commercial / Field Scale	High horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙	Commercial / Field Scale	Broad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Challenger MT856.

Estimated Continuous Field Runtime: 12.1 hrs

Approximately 12.1 hours of continuous field operation at ~75% rated power on a full tank (350 gal / 1324.9 L).

Estimated 75% Load Fuel Burn~28.9 gal/hr (109.5 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours