Deutz D 50.1S (D 55)
Built: 1962–1965 · Series: D-Reihe
More machines from model year 1962
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Deutz D Series – Air-Cooled Compact Tractors of the Early 1960s, 10.2 to 38.1 kW and Operating Weight from 920 to 2,270 kg
The D series covered Deutz's compact tractors of the early 1960s, powered by the brand's characteristic air-cooled diesel engines. According to the register, output of the recorded models ranges from 10.2 to 38.1 kW, with models rated in horsepower spanning 15 to 52 hp, using one- to four-cylinder engines with displacement from 850 to 3,400 cm³.
Read on 3 more paragraphs
Recorded operating weight runs from 920 to 2,270 kg, wheelbase from 1,690 to 2,230 mm, and top speed of the listed models spans 17.7 to 30 km/h. Models such as the D 30 S-Plantage show that narrow-track variants for specialty crops were also offered within the series.
The air-cooled engines were considered robust and low-maintenance, since they needed no coolant or the wear parts that go with it. When buying a used D-series tractor, the engine variant matters most, as cylinder count and displacement differ considerably within the range.
The D series was built from 1959 to 1964, predating the international standardisation of the three-point hitch under ISO 730 in 1977, and in part even predating the power take-off speed of 540 revolutions per minute internationally fixed in 1965 under ISO R 500. Deutz still exists as an engine manufacturer today and continues to supply spare parts for its classic air-cooled units, easing the upkeep of these compact tractors.
Sources: SpecCodex register, model data: Deutz D-Reihe
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 52 hp (38.1 kW)correct |
| Rated speed | 2,300 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 3,400 cm³correct |
| Cooling | air-cooledcorrect |
Dimensions and weights
| Length | 3,720 mmcorrect |
|---|---|
| Width | 1,800 mmcorrect |
| Height | 1,890 mmcorrect |
| Wheelbase | 2,200 mmcorrect |
| Ground clearance | 505 mmcorrect |
| Unladen weight | 2,270 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 8V / 4Rcorrect |
| Forward gears | 8correct |
| Reverse gears | 4correct |
| Front tyres | 6.00-19, 7.50-16correct |
| Rear tyres | 14, 9-30, 12.4-36, 16.9-30correct |
| Top speed | 20 km/hcorrect |
Origin and approval
| Construction | frameless unit constructioncorrect |
|---|---|
| Units built | 24000 alle D 50correct |
Where this model stands
Power-to-weight ratio: 16.8 kW/t (38 kW / 2.3 t)
Power class: Universal (40–100 hp)
Stronger than 36% 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 Deutz D 50.1S (D 55) have?
The Deutz D 50.1S (D 55) delivers 52 hp.
How much does the Deutz D 50.1S (D 55) weigh?
The unladen weight is 2,270 kg.
What engine does the Deutz D 50.1S (D 55) have?
4 cylinders, 3,400 cm³ displacement, Diesel.
How fast does the Deutz D 50.1S (D 55) go?
Top speed is 20 km/h.
What are the dimensions of the Deutz D 50.1S (D 55)?
3,720 mm × 1,800 mm × 1,890 mm.
When was the Deutz D 50.1S (D 55) built?
Production years: 1962–1965.
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 23 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
D 15
D 15 P
D 25.1
D 25.1 S
D 25.2
D 30 S-Plantage
D 40 L (Werksbezeichnung D40.2)
D 40.1
D 40.1 bzw. D40.1S
D 40.2-Plantage
D 40L
D 50
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
