Brandenburger Traktorenwerke KT 731
Series: KT - Reihe
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Brandenburger Traktorenwerke KT 731: series version with an 8,590cc four-cylinder diesel, circulation cooling and 63 hp alongside the KT 732 prototype
The Brandenburger Traktorenwerke also ran the KT range as the version intended for series production; the KT 731 is recorded in the register as the series version of the same design, alongside the prototype.
Read on 3 more paragraphs
The KT 731 carries the same four-cylinder diesel engine with 8,590 cm³ of displacement as the range, producing 63 hp, or 46.34 kW, at 1,150 rpm, and working with circulation cooling. At 3,985 mm long, with a 2,250 mm wheelbase and 1,700 mm width and 2,280 mm height, the machine reaches a top speed of 9.5 km/h. At 1,150 rpm the engine ran markedly slower than later tractor diesels, which served durability.
As the version intended for series production, the KT 731 differed from the test build mainly in manufacturing detail, while the engine, drivetrain and dimensions of the design stayed the same. The circulation cooling and low top speed of 9.5 km/h again point to a purely field-work machine with no road approval in today's sense.
With such a rare series build, documenting provenance and the works number is especially important, to tell the vehicle apart from reproductions or museum reconstructions of the same design. Technically, the condition of the circulation cooling, the tightness of the fuel system and cracking of the engine block after decades of standing should be checked.
Sources: SpecCodex-Register: Kennwerte des Modells Brandenburger Traktorenwerke KT 731
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 63 hp (46.34 kW)correct |
| Rated speed | 1,150 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 8,590 cm³correct |
| Bore | 125 mmcorrect |
| Stroke | 175 mmcorrect |
| Compression ratio | 19correct |
| Injection pressure | 150 barcorrect |
| Cooling | circulating coolingcorrect |
Dimensions and weights
| Length | 3,985 mmcorrect |
|---|---|
| Width | 1,700 mmcorrect |
| Height | 2,280 mmcorrect |
| Wheelbase | 2,250 mmcorrect |
| Ground clearance | 280 mmcorrect |
| Unladen weight | 5,850 kgcorrect |
Drivetrain and chassis
| Drive | Gummikettecorrect |
|---|---|
| Gearbox | 4V / 1Rcorrect |
| Forward gears | 4correct |
| Reverse gears | 1correct |
| Front tyres | Kette, 420correct |
| Rear tyres | Kette, 420correct |
| Top speed | 9.5 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|---|
| Units built | Versuchsmustercorrect |
Where this model stands
Power-to-weight ratio: 7.9 kW/t (46 kW / 5.8 t)
Power class: Universal (40–100 hp)
Stronger than 44% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Brandenburger Traktorenwerke KT 731 have?
The Brandenburger Traktorenwerke KT 731 delivers 63 hp.
How much does the Brandenburger Traktorenwerke KT 731 weigh?
The unladen weight is 5,850 kg.
What engine does the Brandenburger Traktorenwerke KT 731 have?
4 cylinders, 8,590 cm³ displacement, Diesel.
How fast does the Brandenburger Traktorenwerke KT 731 go?
Top speed is 9.5 km/h.
What are the dimensions of the Brandenburger Traktorenwerke KT 731?
3,985 mm × 1,700 mm × 2,280 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.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- 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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 27 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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Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
