Challenger MT855

The Challenger MT855 is a tractor produced by Challenger. It is equipped with a 893 ci 14.6 L engine. The listed engine power is Diesel (gross): 450 hp / 335.6 kW. Transmission: Caterpillar. Drive type: crawler. Operating weight: 41000 lbs 18597 kg.

Engine Power

Diesel (gross): 450 hp / 335.6 kW

Drive & Traction

crawler

Fuel & Capacities

305 gal 1154.4 L

Transmission

Caterpillar

Operating Weight

41000 lbs 18597 kg

Overview

	2002 - 2004 MT800 SeriesAgricultural Crawler tractor MT800 Series Agricultural Crawler tractor

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

Challenger MT855 Engine
Caterpillar 14.6L 6-cyl diesel
Engine details ...

Challenger MT855 Transmission
16-speed full power shift
Transmission details ...

Challenger MT855 Power
Engine (gross)	450 hp 335.6 kW
PTO (claimed)	374 hp 278.9 kW
Drawbar (tested)	346.83 hp 258.6 kW
PTO (tested)	452.31 hp 337.3 kW
Performance test details ...

Mechanical
Drive	crawler
Power steering
Hydraulic wet disc brakes
Cab standard with air-conditioning.

Capacity
Fuel	305 gal 1154.4 L
	330 galOptOptional 1249.0 L
Hydraulic system	70 gal 264.9 L

Hydraulics
Type	closed center load sensing
Capacity	70 gal 264.9 L
Pressure	2900 psi 200.0 bar
Rear valves	4 to 6
Pump flow	43.5 gpm 164.6 lpm
	59 gpmOptOptional 223.3 lpm
SCV flow	30 gpm 113.6 lpm

Tractor hitch
Rear Type	IVN
Rear lift	19500 lbs 8845 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000 (1.75)

Dimensions & Tracks
Wheelbase	118.1 inches 299 cm
Weight	41000 lbs 18597 kg
18-inch tracks
Full dimensions and tracks ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	160
Batteries	4
Battery volts	12

References

MT800 Series published in 2002, by AGCO

Engine

Engine Detail — 893 ci / 14.6 L Diesel

Manufacturer	Caterpillar C16
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled inline
Displacement	893 ci 14.6 L
Bore/Stroke	5.402x6.50 inches 137 x 165 mm
Power (gross)	450 hp 335.6 kW
Air cleaner	dual paper elements
Compression	15.8:1
Rated RPM	2100
Starter volts	12

Transmission

Transmission — Caterpillar

Transmission	Caterpillar
Type	full power shift
Gears	16 forward and 4 reverse
Clutch	hydraulic wet disc

Dimensions

Challenger MT855 Tracks
Width	18 inches 45 cm
Width	27.5 inches 69 cm
Width	30 inches 76 cm
Width	36 inches 91 cm

Dimensions
Wheelbase	118.1 inches 299 cm
Length	265.9 inches 675 cm
Width	142.1 inches 360 cm
Height (cab)	138.1 inches 350 cm
Height (exhaust)	138.7 inches 352 cm
Ground clearance	18.7 inches 47 cm
Gauge	90 to 128 inches 228 to 325 cm

Challenger MT855 Weight
Shipping	41000 lbs 18597 kg
Ballasted	50000 lbs 22680 kg
Max capacity	60000 lbs 27216 kg

Tests

OCED Tractor Test 1814
Diesel 16-speed crawler October 9 - November 15, 2002 Link: OCED Tractor Test 1814 file
PTO performance
Max power	452.31 hp 337.3 kW
Fuel use	23.3 gal/hour 88.2 l/hour
Power at rated engine speed	401.36 hp 299.3 kW
Fuel use	22.5 gal/hour 85.2 l/hour
Power at rated PTO speed	428.30 hp 319.4 kW
Fuel use	23.1 gal/hour 87.4 l/hour
Drawbar performance
Max power	346.83 hp 258.6 kW
Fuel use	22.6 gal/hour 85.5 l/hour
Gear 6 used for power test.
Max pull	42798 lbs 19413 kg
Gear 3 used for pull test.

Photos

Challenger MT855 tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT855 based on its 450 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 MT855.

Estimated Continuous Field Runtime: 13 hrs

Approximately 13 hours of continuous field operation at ~75% rated power on a full tank (305 gal / 1154.6 L).

Estimated 75% Load Fuel Burn~23.4 gal/hr (88.6 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