Challenger MT975B

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

Engine Power

Diesel (listed): 570 hp / 425.0 kW

Fuel & Capacities

390 gal 1476.2 L

Transmission

16 forward and 4 reverse

Operating Weight

39767 lbs 18038 kg

Overview

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

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT975B based on its 570 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 MT975B.

Estimated Continuous Field Runtime: 13.2 hrs

Approximately 13.2 hours of continuous field operation at ~75% rated power on a full tank (390 gal / 1476.3 L).

Estimated 75% Load Fuel Burn~29.6 gal/hr (112.2 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