Challenger MT525D

The Challenger MT525D is a tractor produced by Challenger. It is equipped with a 402.5 ci 6.6 L engine. The listed engine power is Diesel (listed): 140 hp / 104.4 kW. Transmission: TechStar CVT.

Engine Power

Diesel (listed): 140 hp / 104.4 kW

Fuel & Capacities

82 gal 310.4 L

Transmission

TechStar CVT

Overview

	2013 - 2014 MT500D SeriesRow-Crop tractor MT500D Series Row-Crop tractor

Production
Manufacturer	Challenger (a part of AGCO)
Row-Crop tractor
Built in Beauvais, France
Original price	$130,112 (2013 classic )
	$151,316 (2013 deluxe )
	$159,794 (2013 deluxe )

Variants
7615	similar Massey Ferguson model

Challenger MT525D Engine
AGCO Power 6.6L 6-cyl diesel
Fuel tank	82 gal 310.4 L
Exhaust fluid (DEF)	8 gal 30.3 L
Engine details ...

Challenger MT525D Power
Engine	140 hp 104.4 kW
PTO (claimed)	110 hp (AutoPower VI/CVT) 82.0 kW
	120 hp (AutoPower IV) 89.5 kW
Drawbar (tested)	106.6 hp 79.5 kW
PTO (tested)	141.9 hp 105.8 kW
Performance test details ...

Mechanical
Four-wheel drive
Steering	hydrostatic power
Hydraulic wet disc brakes
Cab standard with air-conditioning. AGCO System 150 (optional); AGCOMMAND (optional)

Hydraulics
Type	closed center load sensing (CCLS)
Pressure	2900 psi 200.0 bar
Valves	2 to 4
Total flow	29 gpm 109.8 lpm

Tractor hitch
Rear Type	III/II
Control	electronic lower link draft control
Drawbar	Cat. 2

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000
	540/540E/1000
	540E/1000E/1000/1000E

Dimensions & Tires
Front tire	380/85R28
Rear tire	460/85R38
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	175
	240 *Total capacity with dual 120A alternator option.
Batteries	2
Battery CCA	600
Battery volts	12

References

Challenger MT500D Series published in 2013, by AGCO

Engine

Engine Detail — 402.5 ci / 6.6 L Diesel

Manufacturer	AGCO Power
Configuration	turbocharged intercooled diesel, 6-cylinder, liquid-cooled
Displacement	402.5 ci 6.6 L
Bore/Stroke	4.252x4.724 inches 108 x 120 mm
Emissions	Interim Tier IV
Emission control	selective catalyitic reduction (SCR)
Power	140 hp 104.4 kW
Fuel system	electronic high pressure common rail
Air cleaner	dual stage dry
Starter	electric
Starter volts	12

Transmission

Transmission options
16-speed four-speed power shift
24-speed six-speed power shift
continuously variable transmission

Transmission — AutoPower IV

Transmission	AutoPower IV
Type	four-speed power shift
Gears	16 forward and reverse

Transmission — AutoPower VI

Transmission	AutoPower VI
Type	six-speed power shift
Gears	24 forward and reverse

Transmission — TechStar CVT

Transmission	TechStar CVT
Type	continuously variable transmission
Gears	infinite forward and reverse

Dimensions

Challenger MT525D Tires
Standard tires (ag)	Front: 380/85R28. Rear: 460/85R38

Dimensions
Flange rear axle
Bar rear axle	3.23 by 80 inches 82 by 2032 mm
Long bar rear axle	3.23 by 105 inches 82 by 2667 mm
Bar rear axle	3.74 by 90 inches 94 by 2286 mm (CVT)
Long bar rear axle	3.74 by 113 inches 94 by 2870 mm (CVT)

Tests

Tractor Tests
OECD 2753: diesel AutoPower IV 4WD
OECD 2791: diesel AutoPower VI 4WD
OECD 2774: diesel CVT 4WD

OCED Tractor Test 2753
Diesel AutoPower IV 4WD April 2012 - May 2012, Link: OCED Tractor Test 2753 file
PTO performance
Max power	141.9 hp 105.8 kW
Fuel use	8.1 gal/hour 30.7 l/hour
Power at rated engine speed	127.1 hp 94.8 kW
Fuel use	7.5 gal/hour 28.4 l/hour
Power at rated PTO speed	137.7 hp 102.7 kW
Fuel use	7.9 gal/hour 29.9 l/hour
Drawbar performance
Max power	106.6 hp 79.5 kW
Fuel use	7.1 gal/hour 26.9 l/hour
Gear 3A used for power test.
Max pull	12295 lbs 5577 kg
Gear 2A used for pull test.

OCED Tractor Test 2791
Diesel AutoPower VI 4WD November 2012 - July 2013, Link: OCED Tractor Test 2791 file
PTO performance
Power at rated engine speed	119.2 hp 88.9 kW
Fuel use	7.1 gal/hour 26.9 l/hour
Power at rated PTO speed	130.3 hp 97.2 kW
Fuel use	7.5 gal/hour 28.4 l/hour
Drawbar performance
Max power	98.0 hp 73.1 kW
Fuel use	6.5 gal/hour 24.6 l/hour
Gear 3A used for power test.
Max pull	13060 lbs 5924 kg
Gear 1F used for pull test.

OCED Tractor Test 2774
Diesel CVT 4WD March 2013 - April 2013, Link: OCED Tractor Test 2774 file
PTO performance
Max power	136.2 hp 101.6 kW
Fuel use	7.9 gal/hour 29.9 l/hour
Drawbar performance
Max power	97.9 hp 73.0 kW
Fuel use	7.6 gal/hour 28.8 l/hour
Pull at 7.86KPH
Max pull	15240 lbs 6912 kg
Pull at 3.51KPH

Photos

Challenger MT525D tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT525D based on its 140 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	5 to 7 Bottom (18")5 - 7 铧 (45 cm)	Commercial / Field Scale	Large acreage tillage; requires front ballast weights.
Rotary Cutter / MowerMowing & Clearing	10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼	Heavy Duty	Wide swath pasture and crop residue shredding.
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	15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙	Commercial / Field Scale	Wide commercial field leveling; requires hydraulic remotes.
Hay BalerHay & Forage	5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机	Heavy Duty	High density baling; requires minimum 85 PTO HP.

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 MT525D.

Estimated Continuous Field Runtime: 11.3 hrs

Approximately 11.3 hours of continuous field operation at ~75% rated power on a full tank (82 gal / 310.4 L).

Estimated 75% Load Fuel Burn~7.3 gal/hr (27.6 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