Holder AR 4 / AR 6
Built: 1954–1957 · Series: AR
More machines from model year 1954
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
Holder AR 4 / AR 6: water-cooled single-cylinder diesel compact tractor from the AR series with 500 cc displacement and 7.4 kW output, in the 750 kg and 875 kg weight variants, built 1954 to 1957
Holder, based in Metzingen, Baden-Württemberg, built small, simple field tractors in the 1950s for farms seeking a compact, affordable replacement for horse teams. The AR series, with the AR 4 and AR 6 versions, was built between 1954 and 1957.
Read on 3 more paragraphs
The water-cooled single-cylinder diesel engine of 500 cc delivers 7.4 kW, or 10 hp, and reaches a top speed of 16 km/h. Depending on the version, the machine weighs 750 kg as the AR 4 or 875 kg as the AR 6, the only two differing weight variants of this series, each carrying its own model designation.
A water-cooled single-cylinder diesel this light was built for small farms and specialist crops, for basic tillage and driving small mounted implements such as mowers or single-row ploughs. The low top speed of 16 km/h clearly shows the machine was built for fieldwork rather than further road travel.
When buying such an old Holder AR, the condition of the cooling system with water pump and radiator, compression and starting behaviour of the single cylinder, and rust on the frame and sheet-metal parts all matter. Since the AR 4 and AR 6 differ in weight, it is worth checking the axles, tyres, brakes and clutch condition of the specific version; spare parts at this age can only be sourced through Holder dealers and vintage-tractor specialists.
Sources: SpecCodex-Register: Kennwerte des Modells Holder AR 4 / AR 6, Holder (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 10 hp (7.4 kW)correct |
| Cylinders | 1correct |
| Displacement | 500 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Ground clearance | AR 4: 350 mm AR 6: 410 mmcorrect |
|---|
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 4 V + 1 Rcorrect |
| Forward gears | 4correct |
| Reverse gears | 1correct |
| Front tyres | AR 4: 4.00 x 15 AR 6: 5.50 x 16correct |
| Rear tyres | AR 4: 7.00 - 18 AS AR 6: 7.00 - 24 AScorrect |
| Top speed | 16 km/hcorrect |
Origin and approval
| Construction | Blockkonstruktion mit Vorbaurahmencorrect |
|---|
Frequently asked questions
How much power does the Holder AR 4 / AR 6 have?
The Holder AR 4 / AR 6 delivers 10 hp.
What engine does the Holder AR 4 / AR 6 have?
1 cylinders, 500 cm³ displacement, Diesel.
How fast does the Holder AR 4 / AR 6 go?
Top speed is 16 km/h.
When was the Holder AR 4 / AR 6 built?
Production years: 1954–1957.
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 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.
Request a quote →
We ask the suppliers and come back with price and lead time.
Request spare parts →
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.
Missing a figure you were looking for? Report it →
Know this machine better? Have a photo, a manual, or know that a figure is wrong? Add it to the register →
Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.