Challenger MT525B 2WD 2WD – specifications
Series: Other models
Build year not documented · Data origin: Directory data · sources
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The MT525B 2WD is a tractor from the Challenger series, designed for agricultural applications with rear-wheel drive. The model utilizes a six-cylinder C6.6 ACERT engine with a displacement of 6,600.7 cm³. Turbocharging with aftercooling ensures a rated speed of 2,200 rpm. With a length of 4,630 mm and a width of 2,060.4 mm, the tractor falls within the typical dimensions for this power class. A wheelbase of 2,828.5 mm supports stability during operation.
The Auto Power transmission enables a top speed of 40.2 km/h, allowing for rapid road travel between fields. The empty weight of 5,013.1 kg is distributed across the axles and influences ground pressure. A ground clearance of 392.2 mm facilitates traversing uneven terrain. The lifting capacity of 4,951 kg allows for the attachment of heavy implements. A pump flow rate of 110.2 l/min ensures that hydraulic functions operate quickly. The PTO power of 100 hp drives external equipment.
As a two-wheel-drive variant, the MT525B 2WD offers a simple construction without all-wheel drive. This design is suitable for tasks where maximum traction is not the primary concern, but lower weight and easier maintenance are preferred. A fuel tank capacity of 270.3 l ensures long working times without frequent refueling. The onboard voltage of 24 V supports the electrical equipment. The hydraulic oil volume of 70 l fills the system for the operation of the lift mechanisms and control units.
Challenger – other models: the collective page of tractors outside the named ranges, from the compacts MT225 to MT295 through the wheeled MT425 to MT695 to the tracked MT700 and MT800, 17 to 471 kW, Caterpillar
This page gathers the Challenger tractors the register could not assign to a named range – the brand Caterpillar founded in 1987 with the Challenger 65, the first agricultural tracked tractor with rubber belts, and sold in 2002 to AGCO, which used the name until 2022 for a complete tractor programme. The type logic of the AGCO era: MT stands for the brand, the first digit for the range – MT200 the compacts of Iseki manufacture, MT300 and MT400 the small and medium ones, MT500 and MT600 the four- and six-cylinder wheeled tractors created as sister models of the Massey Ferguson 5400 to 8400 in Beauvais, MT700 and MT800 the rubber-tracked tractors from Jackson, Minnesota, MT900 the articulated ones – the following digits the power step and B, C, D and E the generations; 2WD and MFWD distinguish rear- and four-wheel drive. The engines are Caterpillar (C6.6, C15, C18) in the tracked and articulated tractors of the early years, AGCO Power (Sisu) in the later ones and Iseki in the compacts; the register span of 1.1 to 18.1 litres shows that breadth.
Read on 3 more paragraphs
The register lists here 99 versions with 16.8 to 470.5 kW from three- to seven-cylinders of 1,123 to 18,124 cm³, PTO outputs from 18 to 533 hp, lift capacities from 268 to 8,845 kg, unladen weights from 720 to 27,216 kg and lengths from 1,480 to 7,570 mm.
The Challenger MT700 and MT800 remained to the last the benchmark of the tracked tractor against which John Deere set its 8RT and 9RT and Case IH the Quadtrac; since 2022 the machines run as Fendt MT.
On used tracked tractors the condition of rubber belts, rollers and drive wheels (the most expensive item) counts, on all of them operating hours, engine and exhaust aftertreatment, powershift or stepless transmission, hydraulics and electronics; parts run through AGCO and, for the Cat engines, through Caterpillar.
Sources: SpecCodex register, model data: Challenger (weitere Modelle), Challenger (AGCO, Hersteller)
Versions of this model in the register
Each row is a separate entry with its own data. The figures on this page belong to the row marked ●.
| Version | Built | kW | EU type approval | Origin |
|---|---|---|---|---|
| MT525B | 2004 | 71 | — | Reference work (Wikipedia/Wikibooks) |
| ● MT525B 2WD | — | — | — | Directory data |
| MT525B MFWD | — | — | — | Directory data |
Technical data
Engine
| Engine model | C6.6 ACERTcorrect |
|---|---|
| Rated speed | 2,200 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 6,600.7 cm³correct |
| Aspiration | Turbocharged and Aftercooledcorrect |
| Coolant capacity | 25.7 lcorrect |
Dimensions and weights
| Length | 4,630 mmcorrect |
|---|---|
| Width | 2,060.4 mmcorrect |
| Wheelbase | 2,828.5 mmcorrect |
| Ground clearance | 392.2 mmcorrect |
| Unladen weight | 5,013.1 kgcorrect |
Drivetrain and chassis
| Gearbox type | Auto Powercorrect |
|---|---|
| Top speed | 40.2 km/hcorrect |
Working data
| Lifting capacity | 4,951 kgcorrect |
|---|---|
| Pump flow | 110.2 l/mincorrect |
| Hydraulic oil capacity | 70 lcorrect |
| Fuel tank capacity | 270.3 lcorrect |
Other data
| PTO output | 100 hpcorrect |
|---|---|
| System voltage | 24 Vcorrect |
More machines with this engine (C6.6 ACERT, 12)
Frequently asked questions
How much does the Challenger MT525B 2WD weigh?
The unladen weight is 5,013 kg.
What engine does the Challenger MT525B 2WD have?
6 cylinders, 6,601 cm³ displacement.
How fast does the Challenger MT525B 2WD go?
Top speed is 40.2 km/h.
What is the PTO output of the Challenger MT525B 2WD?
PTO output is 100 hp.
How much does the rear linkage of the Challenger MT525B 2WD lift?
The rear linkage lifts 4,951 kg.
What are the dimensions of the Challenger MT525B 2WD?
4,630 mm × 2,060 mm.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 19 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: RitchieSpecs equipment specifications (retrieved August 2026) · Data sources and cross-checks
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