Challenger MT525B

Challenger MT525B MT500B Series Technical Specifications

Challenger MT525B is a Row-Crop tractor that was produced by the John Deere between 2004 – 2011.

Below you will find detailed technical specifications for Challenger MT525B covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

Challenger MT525B Production

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

Challenger MT525B Power

Engine: 118 hp
88.0 kW
PTO (claimed): 95 hp
70.8 kW
Drawbar (tested): 81.8 hp
61.0 kW
PTO (tested): 110.9 hp
82.7 kW

Challenger MT525B Electrical

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

Challenger MT525B Mechanical

Chassis: 4×2 2WD
  4×4 MFWD 4WD
Final drives: inboard planetary
Differential lock: electro-hydraulic front and rear
Steering: power
Brakes: hydraulic wet disc
Trailer brakes: hydraulic*Optional
Cab: Cab standard with heat and A/C. Optional pneumatic cab suspension and automatic climate control.
Transmissions: 32-speed partial power shift
  24-speed partial power shift
  continuously variable transmission


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


Type: closed center pressure flow compensating (PFC)
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

Tracktor Hitch

Rear Type: II/III
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

Power Take-off (PTO)

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

Title serial numbers

2004: N00001
2005: P00001
2006: R00001
2007: S00001

how to read serial numbers…

What year is my Challenger MT525B? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

Challenger MT525B Engine detail

Engine Detail
Caterpillar 3056C
turbocharged diesel
liquid-cooled vertical inline
Displacement: 365.2 ci
6.0 L
Bore/Stroke: 3.937×5.00 inches
100 x 127 mm
Emissions: Tier II
Power: 118 hp
88.0 kW
Fuel system: electronic direct injection
Cooling system: viscous fan
Air cleaner: dual paper elements
Compression: 17.5:1
Rated RPM: 2200
Idle RPM: 800-2350
Starter volts: 12
Starter power: 4 hp
3.0 kW
Oil capacity: 15.3 qts
14.5 L
Coolant capacity: 29.6 qts
28.0 L

Challenger MT525B Transmission overview

Engine Oil

Transmission: AutoPower IV
Type: partial power shift
Gears: 32 forward and reverse
Clutch: hydraulic wet disc
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.

Challenger MT525B Dimensions

2WD Wheelbase: 112.1 inches
284 cm
4WD Wheelbase: 109.5 inches
278 cm
Length: 168.5 inches
427 cm
Width: 81.1 inches
205 cm
Height (cab): 112.8 inches
286 cm
Clearance (drawbar): 15.4 inches
39 cm
Rear axle: Flange
2WD Front tread: 64.1 to 83 inches
162 to 210 cm
2WD Front tread: 73.2 to 96 inches
185 to 243 cm (wide row-crop axle)
4WD Front tread: 61.7 to 80.8 inches
156 to 205 cm
Rear tread: 54.4 to 88.1 inches
138 to 223 cm

Challenger MT525B Weight
2WD Shipping: 11052 lbs
5013 kg
4WD Shipping: 11546 lbs
5237 kg
CVT 4WD Shipping: 13084 lbs
5934 kg
4WD Operating: 12180 lbs
5524 kg
CVT 4WD Operating: 14835 lbs
6729 kg
Max Drawbar: 3821 lbs
1733 kg
2WD Max front axle: 4652 lbs
2110 kg
4WD Max front axle: 7054 lbs
3199 kg
Max rear axle: 12345 lbs
5599 kg

Challenger MT525B Tests

OCED Tractor Test 5153

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

OCED Tractor Test 2193

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


Is Challenger MT525B a good tractor?

The Challenger MT525B is one of the great tractors in the Challenger (a part of AGCO) stable, and it has earned Challenger (a part of AGCO) a fantastic reputation.

How much oil does a Challenger MT525B take?

Check out the Challenger MT525B oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Challenger (a part of AGCO) made the MT525B?

The Challenger MT525B was an agricultural tractor model made from 2004 – 2011

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