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Challenger MT525B Specs ( 2004-2011 )

Name: Challenger MT525B
Brand: Challenger

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Nebraska Test #OECD 2193

Challenger MT525B

Max Drawbar HP 89.8 hp

Max Pull 14,310 lbs

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Overview

The Challenger MT525B is a row-crop farm tractor manufactured between 2004 and 2011 and powered by a 6.0L 6-cylinder diesel engine. This model supports both 2WD and 4WD configurations and was built with three transmission options including partial power shift and continuously variable transmission systems. Tested performance data records a maximum PTO output of 106.5 hp and a maximum drawbar pull of 14,310 lbs.

Ideal Applications

Transmission Layout Options: The tractor is equipped with either a 24-speed or 32-speed partial power shift transmission or a TechStar CVT offering infinite forward and reverse gears.

Tested Performance Data: Nebraska Tractor Test data confirms a maximum tested drawbar output of 89.8 hp and a maximum pull of 14,310 lbs for the diesel variant.

Hydraulic and Hitch Capacity: The machine features a closed center pressure flow compensating hydraulic system with a 29 gpm flow rate and a rear lift capacity of up to 11,200 lbs on CVT models.

Production

Description	Row-Crop tractor / Built in Beauvais, France / The Challenger 525B is similar to the Massey Ferguson 6465 and 7465.
Manufacturer	Challenger (a part of AGCO)

Engine

Engine type	Caterpillar 6.0L 6-cyl diesel
Air cleaner	dual paper elements
Bore/Stroke	3.937x5.00 inches (100 x 127 mm)
Compression	17.5:1
Coolant capacity	29.6 qts (28.0 L)
Cooling system	viscous fan
Description	Caterpillar 3056C / turbocharged diesel / 6-cylinder / liquid-cooled vertical inline
Displacement	365.2 ci (6.0 L)
Emissions	Tier II
Fuel system	electronic direct injection
Idle RPM	800-2350
Oil capacity	15.3 qts (14.5 L)
Power	118 hp (88.0 kW)
Rated RPM	2200
Starter power	4 hp (3.0 kW)
Starter volts	12
Drawbar (tested)	81.8 hp (61.0 kW)
PTO (claimed)	95 hp (70.8 kW)
PTO (tested)	110.9 hp (82.7 kW)

Transmission

Clutch	hydraulic wet disc
Description	Four synchronized gears (1-4) in two synchronized ranges (low/high) with a four-speed (A-D) power shift on the left-hand power shuttle lever. / Four gears with six power shift ranges. The AutoPower VI became acailable in 2005.
Gears	32 forward and reverse / 24 forward and reverse / infinite forward and reverse (2-range)
Oil capacity	59.2 qts (56.0 L)
Transmission	AutoPower IV / AutoPower VI / TechStar CVT
Type	partial power shift / partial power shift / continuously variable transmission
Description	continuously variable transmission
Transmission type	32-speed partial power shift / 24-speed partial power shift
Description	continuously variable transmission
Transmission type	32-speed partial power shift / 24-speed partial power shift

Mechanical

Cab	Cab standard with heat and A/C. Optional pneumatic cab suspension and automatic climate control.
Description	Power steering / Hydraulic wet disc brakes
Differential lock	electro-hydraulic front and rear
Drive type	Two- or four-wheel drive
Final drives	inboard planetary
Trailer brakes	hydraulic OptOptional

Capacity

AutoPower Hydraulic system	18.5 gal (70.0 L)
CVT Hydraulic system	26.4 gal (99.9 L)
Fuel	71 gal (268.7 L)

Hydraulics

AutoPower Capacity	18.5 gal (70.0 L)
CVT Capacity	26.4 gal (99.9 L)
Pressure	2900 psi (200.0 bar)
Rear valves	2 to 4
Total flow	29 gpm (109.8 lpm)
Type	closed center pressure flow compensating (PFC)

Hitch

AP Rear lift (at 24"/610mm)	8500 lbs (3855 kg)
CVT Rear lift (at 24"/610mm)	11200 lbs (5080 kg)
Front Hitch	optional
Front lift	5,500 lbs (2494 kg)
Rear Type	II/III

PTO

Engine RPM	540@1980
Rear PTO	independent
Rear PTO Type	540/1000 (1.375)

Electrical

Batteries	2
Battery CCA	420
Battery volts	12
Charging amps	120
Charging system	alternator
Ground	negative

Dimensions & Tires

Ag front	14L-16.1 (2WD)
Ag rear	18.4R38
2WD Front tread	64.1 to 83 inches (162 to 210 cm) / 73.2 to 96 inches (wide row-crop axle) (185 to 243 cm)
2WD Wheelbase	112.1 inches (284 cm)
4WD Front tread	61.7 to 80.8 inches (156 to 205 cm)
4WD Wheelbase	109.5 inches (278 cm)
Clearance (drawbar)	15.4 inches (39 cm)
Description	Flange rear axle
Height (cab)	112.8 inches (286 cm)
Length	168.5 inches (427 cm)
Rear tread	54.4 to 88.1 inches (138 to 223 cm)
Width	81.1 inches (205 cm)
2WD Wheelbase	112.1 inches (284 cm)
4WD Wheelbase	109.5 inches (278 cm)
Front tire	14L-16.1
Rear tire	18.4R38
Weight	11052 to 14835 pounds

Challenger MT525B Weight

2WD Max front axle	4652 lbs (2110 kg)
2WD Shipping	11052 lbs (5013 kg)
4WD Max front axle	7054 lbs (3199 kg)
4WD Operating	12180 lbs (5524 kg)
4WD Shipping	11546 lbs (5237 kg)
CVT 4WD Operating	14835 lbs (6729 kg)
CVT 4WD Shipping	13084 lbs (5934 kg)
Max Drawbar	3821 lbs (1733 kg)
Max rear axle	12345 lbs (5599 kg)

MT525B Serial Numbers

2004	N00001
2005	P00001
2006	R00001
2007	S00001
Description	FAQ: How to read a serial number table.

OCED Tractor Test 2193

Description	Diesel CVT 4WDJanuary 2004 - March 2004, Link: OCED Tractor Test 2193 file / PTO performance / Drawbar performance / Pull at 6.2 KPH / Pull at 3.3 KPH
Fuel use	6.3 gal/hour (23.8 l/hour) / 6.6 gal/hour (25.0 l/hour) / 6.5 gal/hour (24.6 l/hour)
Max power	106.5 hp (79.4 kW) / 81.8 hp (61.0 kW)
Max pull	14,310 lbs (6491 kg)
Power at rated engine speed	96.7 hp (72.1 kW)
Power at rated PTO speed	102.5 hp (76.4 kW)

OCED Tractor Test 5153

Description	Diesel AutoPower IV 4WDFebruary 2004 - March 2004, Link: OCED Tractor Test 5153 file / PTO performance / Drawbar performance / Gear 1LB used for power test. / Gear 1TD used for pull test.
Fuel use	6.4 gal/hour (24.2 l/hour) / 6.7 gal/hour (25.4 l/hour) / 6.7 gal/hour (25.4 l/hour) / 5.6 gal/hour (21.2 l/hour)
Max power	110.9 hp (82.7 kW) / 60.2 hp (44.9 kW)
Max pull	10,160 lbs (4608 kg)
Power at rated engine speed	96.7 hp (72.1 kW)
Power at rated PTO speed	109.2 hp (81.4 kW)

References

Description	Challenger MT500B AutoPower IV Product Information Guide published in 2004, by AGCO / Challenger MT500B Series published in 2005, by AGCO / Challenger MT500B TECHstar CVT Product Information Guide published in 2004, by AGCO / Challenger Specialty Wheel Tractors published in 2007

Speeds

Description	With 18.4R38 rear tires. / 50 KPH speeds available with front-axle suspension.

Tractor Tests

Description	OECD 5153: diesel AutoPower IV 4WD / OECD 2193: diesel CVT 4WD

Variants

6465	similar Massey Ferguson model
7465	similar Massey Ferguson model

Nebraska Tractor Test Results

Test #OECD 2193

Download PDF

Test Date: January - March, 2004

Location: DLG testing Station for Agricultural Machinery, Max-Eyth-Weg 1 D-64823 Gros-Umstadt, Germany

This section is compiled from original Nebraska Tractor Test PDFs using AI-assisted extraction and human review. For full verification, download the source PDF above. Differences between reports, incomplete source data, and occasional extraction or data entry mistakes can occur.

PTO Drawbar Hydraulics Technical Sound Tires & Weight

Maximum Power & Fuel Consumption

Rated Engine Speed

96.70 hp

N/A lb/hp·hr

Standard PTO Speed

102.50 hp

@ 1000 rpm PTO

Torque Statistics

Maximum Torque	340 lb-ft (461 Nm)
Torque Rise	47.3%
At Engine RPM	1403 rpm

PTO Power Curve

Maximum Power & Fuel Consumption Details

Condition	HP	kW	RPM	PTO RPM	Fuel gal/hr
Rated Engine Speed	96.70	72.10	2199	1081	6.64
Standard PTO Speed (1000 rpm)	102.50	76.40	2034	1000	6.52

Varying Power & Fuel Consumption

Click column headers to sort

Power	RPM	gal/hr	lb/hp·hr	hp·hr/gal	DEF gal/hr
96.70	2199	6.64	0.47	14.57	N/A
82.80	2217	5.98	0.50	13.86	N/A
62.80	2239	4.95	0.54	12.69	N/A
42.40	2260	4.12	0.67	10.29	N/A
21.30	2278	3.02	0.98	7.07	N/A
N/A	2297	2.19	N/A	N/A	N/A

Fuel Consumption Characteristics (Unballasted) Front Drive Engaged

Click column headers to sort

Power	kW	Pull (lbs)	Pull (kN)	Speed	km/h	RPM	Slip	hp·hr/gal	lb/hp·hr	Air °F	Air °C	Cool °F	Cool °C	Barometer Inch Hg	Barometer Kpa	Condition	Kg Kw H	Kw H L
81.80	61.00	7,945	35.35	3.86	6.21	2201	2.50	12.06	0.57	70	21	149	65	29.90	101.30	Maximum Power - Turtle	0.35	2.38
62.80	46.80	5,950	26.46	3.96	6.37	2229	1.60	11.03	0.63	70	21	144	62	29.90	101.30	75% of Pull at Maximum Power - Turtle	0.38	2.17
42.80	31.90	3,965	17.64	4.05	6.51	2250	0.70	9.24	0.75	72	22	144	62	29.90	101.30	50% of Pull at Maximum Power - Turtle	0.45	1.82
63.10	47.00	5,950	26.46	3.98	6.40	1872	1.80	12.77	0.54	70	21	144	62	29.90	101.30	75% of Pull at Reduced Engine Speed - Turtle	0.33	2.51
42.80	31.90	3,960	17.62	4.06	6.53	1887	0.70	11.02	0.63	70	21	140	60	29.90	101.30	50% of Pull at Reduced Engine Speed - Turtle	0.38	2.17

Maximum Power At Selected Speeds (Unballasted) Front Drive Engaged

Click column headers to sort

Power	kW	Pull (lbs)	Pull (kN)	Speed	km/h	RPM	Slip	hp·hr/gal	lb/hp·hr	Air °F	inHg	Kg Kw H	Kw H L	Range	Temp Cool Med F
77.00	57.40	14,310	63.65	2.02	3.25	2114	15.30	11.29	0.61	66	30.00	0.37	2.22	Turtle	147
86.20	64.30	14,280	63.53	2.26	3.64	1801	9.10	13.30	0.52	64	29.90	0.32	2.62	Turtle	145
89.80	67.00	11,090	49.32	3.04	4.89	1801	4.50	13.95	0.49	64	29.90	0.30	2.75	Turtle	145
89.40	66.70	8,850	39.36	3.79	6.10	1800	2.70	13.97	0.49	59	30.00	0.30	2.75	Turtle	138
89.20	66.50	7,250	32.26	4.61	7.42	1801	2.50	13.86	0.50	61	30.00	0.30	2.73	Turtle	138
88.40	65.90	5,945	26.45	5.57	8.97	1800	1.80	13.76	0.50	63	29.90	0.31	2.71	Turtle	143
87.40	65.20	4,985	22.18	6.57	10.58	1801	0.90	13.65	0.51	63	29.90	0.31	2.69	Turtle	145
86.10	64.20	4,425	19.68	7.30	11.74	1803	0.60	13.40	0.51	63	29.90	0.31	2.64	Turtle	147
85.00	63.40	3,775	16.80	8.44	13.58	1802	0.60	13.20	0.52	61	29.90	0.32	2.60	Turtle	147
87.90	65.60	7,405	32.90	4.45	7.16	1801	2.20	13.71	0.50	63	29.90	0.31	2.70	Rabbit	149
88.60	66.10	6,265	27.88	5.30	8.53	1801	1.60	13.81	0.50	64	29.90	0.30	2.72	Rabbit	147
88.60	66.10	5,085	22.62	6.54	10.52	1802	1.10	13.81	0.50	64	29.90	0.30	2.72	Rabbit	147
88.50	66.00	4,450	19.79	7.46	12.01	1805	0.80	13.73	0.50	64	29.90	0.31	2.70	Rabbit	147
87.40	65.20	3,905	17.37	8.39	13.51	1807	0.50	13.50	0.51	63	29.90	0.31	2.66	Rabbit	149

Engine

Make	Perkins Diesel
Type	six cylinder vertical with turbocharger and air to air intercooler
Displacement	365 cu in (5985 ml)
Compression Ratio	17.5 to 1
Rated Engine Speed	2200 rpm
Air Cleaner	two paper elements and aspirator
Crankshaft	lengthwise

Chassis

Type	front wheel assist
Steering	hydrostatic
Transmission	AGCO CVT. A combination of mechanical and hydrostatic sections are electronically controlled to give the travel speeds shown. The transmission has two mechanical ranges.
Wheelbase	109.40 in (2780 mm)
Front Tread Width	72.4 to 78.1 in
Rear Tread Width	61.6 to 74.6 in
Brakes	multiple wet disc hydraulically operated by two foot pedals that can be locked together
Hydraulic Control	direct engine drive
Unladen Tractor Mass	14,835 lbs ( 6,730 kg )

Consumables

Fuel	Fuel No. 2 Diesel
DEF Fluid	N/A
Engine Oil	SAE 10W40

Sound Levels

Bystander	84.40 dB(A)
At No Load In Turtle Range 4 6 Mph	70.40 dB(A)

Tires & Tracks

Rear Tires	**, 650/65R38
Front Tires	**, 540/65R28
Height of Drawbar	22.00 in (560 mm)

Static Weight

Rear	9,170 lbs
Front	5,830 lbs
Total	15,000 lbs

Challenger MT525B Specs ( 2004-2011 )

Overview

Ideal Applications

Production

Engine

Transmission

Mechanical

Capacity

Hydraulics

Hitch

PTO

Electrical

Dimensions & Tires

Challenger MT525B Weight

MT525B Serial Numbers

OCED Tractor Test 2193

OCED Tractor Test 5153

References

Speeds

Tractor Tests

Variants

Nebraska Tractor Test Results

PTO Performance

Maximum Power & Fuel Consumption

Torque Statistics

PTO Power Curve

Maximum Power & Fuel Consumption Details

Varying Power & Fuel Consumption

Drawbar Performance

Fuel Consumption Characteristics (Unballasted) Front Drive Engaged

Maximum Power At Selected Speeds (Unballasted) Front Drive Engaged

Hydraulic Performance

Lift Capacity

Technical Specifications

Engine

Chassis

Consumables

Sound Levels

Sound Levels

Tires & Weight

Tires & Tracks

Static Weight

Test Remarks