Challenger MT525B: all source data
All 108 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Challenger (a part of AGCO) |
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| (no label) | Row-Crop tractor |
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| (no label) | Built in Beauvais, France |
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| (no label) | The Challenger 525B is similar to the Massey Ferguson 6465 and 7465. |
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Engine| (no label) | Caterpillar 6.0L 6-cyl diesel |
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Transmission| (no label) | 32-speed partial power shift |
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| (no label) | 24-speed partial power shift |
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| (no label) | continuously variable transmission |
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Power| Engine | 118 hp | 88.0 kW |
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| PTO (claimed) | 95 hp | 70.8 kW |
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| Drawbar (tested) | 81.8 hp | 61.0 kW |
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| PTO (tested) | 110.9 hp | 82.7 kW |
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Mechanical| (no label) | Two- or four-wheel drive |
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| Final drives | inboard planetary |
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| Differential lock | electro-hydraulic front and rear |
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| (no label) | Power steering |
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| (no label) | Hydraulic wet disc brakes |
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| Trailer brakes | hydraulic |
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| (no label) | Cab standard with heat and A/C. Optional pneumatic cab suspension and automatic climate control. |
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Capacity| Fuel | 71 gal | 268.7 L |
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| AutoPower Hydraulic system (AutoPower) | 18.5 gal | 70.0 L |
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| CVT Hydraulic system (CVT) | 26.4 gal | 99.9 L |
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Hydraulics| Type | closed center pressure flow compensating (PFC) |
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| AutoPower Capacity (AutoPower) | 18.5 gal | 70.0 L |
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| CVT Capacity (CVT) | 26.4 gal | 99.9 L |
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| Pressure | 2900 psi | 200.0 bar |
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| Rear valves | 2 to 4 |
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| Total flow | 29 gpm | 109.8 lpm |
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Hitch| Rear Type | II/III |
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| AP Rear lift (at 24"/610mm) | 8500 lbs | 3855 kg |
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| CVT Rear lift (at 24"/610mm) | 11200 lbs | 5080 kg |
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| Front Hitch | optional |
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| Front lift | 5,500 lbs | 2494 kg |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 540/1000 (1.375) |
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| Rear PTO Type | 540/540E/1000 |
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| Engine RPM | 540@1980 |
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| Engine RPM | 540E@1533 |
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| Engine RPM | 1000@2000 |
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| Engine RPM | 1000E@1548 |
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Dimensions| 2WD Wheelbase (2WD) | 112.1 inches | 284 cm |
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| 4WD Wheelbase (4WD) | 109.5 inches | 278 cm |
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| Weight | 11052 to 14835 pounds |
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| Front tire | 14L-16.1 |
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| Rear tire | 18.4R38 |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 120 |
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| Batteries | 2 |
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| Battery CCA | 420 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Caterpillar 3056C |
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| (no label) | turbocharged diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled vertical inline |
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| Displacement | 365.2 ci | 6.0 L |
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| Bore/Stroke | 3.937x5.00 inches | 100 x 127 mm |
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| Emissions | Tier II |
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| Power | 118 hp | 88.0 kW |
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| Fuel system | electronic direct injection |
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| Cooling system | viscous fan |
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| Air cleaner | dual paper elements |
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| Compression | 17.5:1 |
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| Rated RPM | 2200 |
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| Idle RPM | 800-2350 |
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| Starter volts | 12 |
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| Starter power | 4 hp | 3.0 kW |
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| Oil capacity | 15.3 qts | 14.5 L |
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| Coolant capacity (Coolant) | 29.6 qts | 28.0 L |
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Transmission
Transmission options| (no label) | 32-speed partial power shift |
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| (no label) | 24-speed partial power shift |
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| (no label) | continuously variable transmission |
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Transmission| Transmission | AutoPower IV |
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| Type | partial power shift |
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| Gears | 32 forward and reverse |
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| Clutch | hydraulic wet disc |
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| (no label) | 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. |
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| Transmission | AutoPower VI |
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| Type | partial power shift |
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| Gears | 24 forward and reverse |
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| (no label) | Four gears with six power shift ranges. The AutoPower VI became acailable in 2005. |
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| Transmission | TechStar CVT |
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| Type | continuously variable transmission |
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| Gears | infinite forward and reverse (2-range) |
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| Oil capacity | 59.2 qts | 56.0 L |
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Dimensions
Tires| Ag front | 14L-16.1 (2WD) |
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| Ag front | 14.9R28 (4WD) |
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| Ag rear | 18.4R38 |
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Dimensions| 2WD Wheelbase (2WD) | 112.1 inches | 284 cm |
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| 4WD Wheelbase (4WD) | 109.5 inches | 278 cm |
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| Length | 168.5 inches | 427 cm |
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| Width | 81.1 inches | 205 cm |
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| Height (cab) | 112.8 inches | 286 cm |
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| Clearance (drawbar) | 15.4 inches | 39 cm |
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| (no label) | Flange rear axle |
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| 2WD Front tread | 64.1 to 83 inches | 162 to 210 cm |
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| 2WD Front tread | 73.2 to 96 inches (wide row-crop axle) | 185 to 243 cm |
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| 4WD Front tread | 61.7 to 80.8 inches | 156 to 205 cm |
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| Rear tread | 54.4 to 88.1 inches | 138 to 223 cm |
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Weight| 2WD Shipping (2WD) | 11052 lbs | 5013 kg |
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| 4WD Shipping (4WD) | 11546 lbs | 5237 kg |
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| CVT 4WD Shipping (CVT 4WD) | 13084 lbs | 5934 kg |
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| 4WD Operating (4WD) | 12180 lbs | 5524 kg |
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| CVT 4WD Operating (CVT 4WD) | 14835 lbs | 6729 kg |
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| Max Drawbar | 3821 lbs | 1733 kg |
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| 2WD Max front axle | 4652 lbs | 2110 kg |
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| 4WD Max front axle | 7054 lbs | 3199 kg |
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| Max rear axle (Max) | 12345 lbs | 5599 kg |
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