Brandenburger Traktorenwerke RS03 („Aktivist“)
Built: 1949–1952 · Series: RS
More machines from model year 1949
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Brandenburger Traktorenwerke RS03 'Aktivist': lighter two-cylinder diesel from 1949 with 3,325cc, 30 hp and a top speed of 18 km/h
Between 1949 and 1952 the Brandenburger Traktorenwerke also built the smaller two-cylinder diesel “Aktivist” under the RS range, a lighter version alongside the larger four-cylinder KT range from the same manufacturer.
Read on 3 more paragraphs
The RS03 “Aktivist” carries a water-cooled two-cylinder diesel engine with 3,325 cm³ of displacement, producing 30 hp, or 22.06 kW, at 1,500 rpm. At 2,250 kg, 2,685 mm long, with a 1,650 mm wheelbase and 1,630 mm width and 2,300 mm height, the machine reaches a top speed of 18 km/h.
With only two cylinders and considerably less displacement than the KT range, the “Aktivist” was built for smaller holdings and lighter draft work, while its top speed of 18 km/h also allowed short transport runs around the yard and between fields. Water cooling with its own radiator set it apart from the circulation cooling of the heavier KT models from the same works. At 1,500 rpm the two-cylinder ran at comparatively high speed for its time, matching the shorter gearing behind its higher road speed.
With this rarer two-cylinder diesel from the early postwar years, the condition of the cooling system with radiator and water pump matters, as does the tightness of the injection pump and the soundness of the engine block. Corrosion damage to the frame and axles and the condition of the tyres should be checked especially carefully on such an old machine.
Sources: SpecCodex-Register: Kennwerte des Modells Brandenburger Traktorenwerke RS03
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 30 hp (22.06 kW)correct |
| Rated speed | 1,500 rpmcorrect |
| Cylinders | 2correct |
| Displacement | 3,325 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 2,685 mmcorrect |
|---|---|
| Width | 1,630 mmcorrect |
| Height | 2,300 mmcorrect |
| Wheelbase | 1,650 mmcorrect |
| Ground clearance | 290 mmcorrect |
| Unladen weight | 2,250 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 4/1-manual gearbox gearboxcorrect |
| Front tyres | 6, 00-16correct |
| Rear tyres | 9, 00-24correct |
| Top speed | 18 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|---|
| Units built | 3,761correct |
Where this model stands
Power-to-weight ratio: 9.8 kW/t (22 kW / 2.2 t)
Power class: Compact (< 40 hp)
Stronger than 17% 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 RS03 („Aktivist“) have?
The Brandenburger Traktorenwerke RS03 („Aktivist“) delivers 30 hp.
How much does the Brandenburger Traktorenwerke RS03 („Aktivist“) weigh?
The unladen weight is 2,250 kg.
What engine does the Brandenburger Traktorenwerke RS03 („Aktivist“) have?
2 cylinders, 3,325 cm³ displacement, Diesel.
How fast does the Brandenburger Traktorenwerke RS03 („Aktivist“) go?
Top speed is 18 km/h.
What are the dimensions of the Brandenburger Traktorenwerke RS03 („Aktivist“)?
2,685 mm × 1,630 mm × 2,300 mm.
When was the Brandenburger Traktorenwerke RS03 („Aktivist“) built?
Production years: 1949–1952.
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.
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This page carries 20 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.
