Challenger MT975B

The Challenger MT975B is a tractor produced by Challenger. It is equipped with a 1106 ci 18.1 L engine. The rated power output is 570 hp 425.0 kW. Transmission: 16 forward and 4 reverse. Operating weight: 39767 lbs 18038 kg.

Overview

	2007 - 2009 900B SeriesFour-wheel Drive (4WD) tractor
2007 - 2009
900B Series
Four-wheel Drive (4WD) tractor

Production
Manufacturer	Challenger (a part of AGCO)
Four-wheel Drive (4WD) tractor
Built in Jackson, Minnesota, USA

Challenger MT975B Engine
Caterpillar 18.1L 6-cyl diesel
Fuel tank	390 gal 1476.2 L
Engine details ...

Challenger MT975B Transmission
16-speed full power shift
Transmission details ...

Challenger MT975B Power
Engine	570 hp 425.0 kW
PTO (claimed)	425 hp 316.9 kW
Drawbar (tested)	523.03 hp 390.0 kW
PTO (tested)	584.72 hp 436.0 kW
Performance test details ...

Mechanical
Four-wheel drive
Final drives	inboard planetary
Differential lock	electro-hydraulic front and rear optional
Articulated power steering
Wet disc brakes
Cab standard with air-conditioning.

Hydraulics
Type	closed center PFC
Pressure	2900 psi 200.0 bar
Rear valves	4 to 6
Total flow	43.5 gpm 164.6 lpm
	59 gpmOptOptional 223.3 lpm

Tractor hitch
Rear Type	IVN/III OptOptional
	IV OptOptional
Rear lift	19500 lbs 8845 kg

Power Take-off (PTO)
Rear PTO	independent OptOptional
Rear PTO Type	1000 (1.75)
Engine RPM	1000@2000

Dimensions & Tires
Wheelbase	155.5 inches 394 cm
Weight	39767 lbs 18038 kg
Front tire	800/70R38
Rear tire	800/70R38
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	185
Batteries	4
Battery CCA	1000
Battery volts	12

References
Challenger MT900B Series published in 2006, by AGCO
Challenger MT900B Series published in 2007, by AGCO

Engine

Engine Detail — 1106 ci / 18.1 L Diesel

Manufacturer	Caterpillar C18
Configuration	turbocharged aftercooled diesel, 6-cylinder 24-valve, liquid-cooled inline
Displacement	1106 ci 18.1 L
Bore/Stroke	5.709x7.205 inches 145 x 183 mm
Emissions	Tier III
Power	570 hp 425.0 kW
Air cleaner	dual dry element
Compression	16.3:1
Rated RPM	2100

Challenger MT975B Engine

Transmission

Transmission — 16 forward and 4 reverse full power shift

Type	full power shift
Gears	16 forward and 4 reverse
Clutch	hydraulic wet discs

Dimensions

Challenger MT975B Tires
Ag front	800/70R38
Ag rear	800/70R38

Dimensions
Wheelbase	155.5 inches 394 cm
Length	298 inches 756 cm
Width	200 inches 508 cm
Height (cab)	151 inches 383 cm
Shipping weight	39767 lbs 18038 kg
Max weight	60000 lbs 27216 kg
Ground clearance	17.5 inches 44 cm
Front axle	5.71 inch diameter 145 mm
Rear axle	5.71 inch diameter 145 mm

Tests

OCED Tractor Test 1931
Diesel power shift 4WD June 6 - 20, 2008 Link: OCED Tractor Test 1931 file
PTO performance
Max power	584.72 hp 436.0 kW
Fuel use	32.9 gal/hour 124.5 l/hour
Power at rated engine speed	518.16 hp 386.4 kW
Fuel use	32.8 gal/hour 124.1 l/hour
Power at rated PTO speed	552.37 hp 411.9 kW
Fuel use	33.8 gal/hour 127.9 l/hour
Drawbar performance
Max power	523.03 hp 390.0 kW
Fuel use	33.5 gal/hour 126.8 l/hour
Gear 10 used for power test.
Max pull	46088 lbs 20905 kg
Gear 5 used for pull test.

Photos

Challenger MT975B tractor photo