Gebrüder Holder EHG
Built: 1942/43–1946 · Series: Einachser
More machines from model year 1942
Holder EHG: air-cooled single-cylinder single-axle tractor with wood-gas power, 510 cc, 6 hp and 390 kg weight, built 1942/43 to 1946
Gebrüder Holder was a German maker of small single-axle tractors based in Baden-Württemberg. The EHG was built in the last years of the war and the immediate post-war period, when petrol and diesel for agriculture were scarce and many vehicles were converted to, or built from the outset for, wood-gas power.
Read on 3 more paragraphs
The EHG is powered by an air-cooled single-cylinder engine of 510 cc, fed from a wood-gas generator, producing 6 hp. At a weight of 390 kg, a length of 2,300 mm, a height of 1,250 mm and a width of 750 mm, it is a light single-axle tractor with a top speed of 8 km/h.
A wood-gas generator gasifies solid fuels such as wood or charcoal into a combustible gas that powers the engine in place of petrol; this method was a common stopgap during the war years and immediate post-war period when liquid fuel was unavailable. Such a light single-axle tractor was built for simple drawbar work, driving mounted implements and transport on the owner's own yard.
When buying such a rare wood-gas single-axle tractor secondhand, the first question is whether the wood-gas generator still exists and works, as it was often removed later or replaced with a petrol or diesel drive. Also worth checking are the condition of the engine, the clutch and the drive wheels, and the frame and sheet-metal parts for rust; spare parts for such a museum piece can today practically only be sourced through collector circles.
Sources: SpecCodex-Register: Kennwerte des Modells Holder EHG
Technical data
Engine
| Fuel | Holzgascorrect |
|---|---|
| Power | 6 hpcorrect |
| Rated speed | 2.500? rpmcorrect |
| Cylinders | 1correct |
| Displacement | 510 cm³correct |
| Cooling | air-cooledcorrect |
Dimensions and weights
| Length | 2,300 mmcorrect |
|---|---|
| Width | 750 mmcorrect |
| Height | 1,250 mmcorrect |
| Ground clearance | 260 mmcorrect |
| Unladen weight | 390 kgcorrect |
Drivetrain and chassis
| Drive | single-axle drivecorrect |
|---|---|
| Gearbox | 4/1correct |
| Top speed | 8 km/hcorrect |
Origin and approval
| Construction | frameless unit constructioncorrect |
|---|
Where this model stands
Power-to-weight ratio: 11.3 kW/t (4 kW / 0.4 t)
Power class: Compact (< 40 hp)
Stronger than 0% 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 Gebrüder Holder EHG have?
The Gebrüder Holder EHG delivers 6 hp.
How much does the Gebrüder Holder EHG weigh?
The unladen weight is 390 kg.
What engine does the Gebrüder Holder EHG have?
1 cylinders, 510 cm³ displacement, Holzgas.
How fast does the Gebrüder Holder EHG go?
Top speed is 8 km/h.
What are the dimensions of the Gebrüder Holder EHG?
2,300 mm × 750 mm × 1,250 mm.
When was the Gebrüder Holder EHG built?
Production years: 1942/43–1946.
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.
- 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 15 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: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.