Holder AR (38/39)
Built: 1937–1941 · Series: Auto-Rekord
More machines from model year 1937
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Holder AR (38/39): air-cooled single-cylinder two-stroke compact tractor from the Auto-Rekord series with 335 cc displacement, 4.8 kW output and 480 kg weight, built 1937 to 1941
Holder, based in Metzingen, Baden-Württemberg, was in the late 1930s among the smaller German manufacturers offering simple compact tractors to farms that had previously relied on horse teams or manual labour. The AR (38/39) from the Auto-Rekord series was built between 1937 and 1941.
Read on 3 more paragraphs
The single-cylinder engine of 335 cc runs on a two-stroke petrol-oil mixture, is air-cooled and delivers 4.8 kW, or 6.5 hp. At a weight of 480 kg, a length of 2,000 mm, a height of 900 mm and a width of 1,100 mm, the AR (38/39) reaches a top speed of 7 km/h.
A two-stroke tractor this small and light, with a top speed of only 7 km/h, was built for the simplest tasks of a small holding: light tillage, driving small stationary equipment through a belt pulley, and hauling light loads, not for field work on a larger scale or for any meaningful road use beyond the farmyard.
When buying such an old two-stroke compact tractor, the correct petrol-to-oil mixture ratio for the engine, the condition of the piston and rings, which see the wear typical of two-stroke engines, and the cooling fins on the cylinder and rust on the frame and sheet-metal parts all matter. Spare parts for a model this old can now practically only be found among collectors of historic agricultural machinery and vintage-engine specialists.
Sources: SpecCodex-Register: Kennwerte des Modells Holder AR (38/39), Holder (manufacturer)
Technical data
Engine
| Fuel | Benzin-Gemisch (Zweitakt)correct |
|---|---|
| Power | 6.5 hp (4.8 kW)correct |
| Cylinders | 1correct |
| Displacement | 335 cm³correct |
| Cooling | air-cooledcorrect |
Dimensions and weights
| Length | 2,000 mmcorrect |
|---|---|
| Width | 1,100 mmcorrect |
| Height | 900 mmcorrect |
| Unladen weight | 480 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 2 V + 1 Rcorrect |
| Front tyres | Eisenräder 450x110 mmcorrect |
| Rear tyres | Stahlgreifer 700x120 mmcorrect |
| Top speed | 7 km/hcorrect |
Origin and approval
| Construction | frame constructioncorrect |
|---|
Where this model stands
Power-to-weight ratio: 10 kW/t (5 kW / 0.5 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 Holder AR (38/39) have?
The Holder AR (38/39) delivers 6.5 hp.
How much does the Holder AR (38/39) weigh?
The unladen weight is 480 kg.
What engine does the Holder AR (38/39) have?
1 cylinders, 335 cm³ displacement, Benzin-Gemisch (Zweitakt).
How fast does the Holder AR (38/39) go?
Top speed is 7 km/h.
What are the dimensions of the Holder AR (38/39)?
2,000 mm × 1,100 mm × 900 mm.
When was the Holder AR (38/39) built?
Production years: 1937–1941.
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 16 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.
