Challenger MT855

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

Overview

	2002 - 2004 MT800 SeriesAgricultural Crawler tractor
2002 - 2004
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