Oliver / Brown 500
Built: 1961–1963 · Series: Other models
More machines from model year 1961
Oliver / Brown – other models: collective page of the register designation with the four-cylinder tractors 500 and 600, 25.7 to 31.6 kW, 2,523 to 2,707 cm³, petrol or diesel engine option
This page gathers tractors the register lists under the Oliver / Brown designation that it could not assign to a named range; recorded are the 500 and 600 models, two four-cylinder tractors of comparable size and power. Both models represent technically simple, robust standard tractors without elaborate extra equipment.
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The register lists here 2 versions with 25.7 to 31.6 kW from four-cylinder engines of 2,523 to 2,707 cm³, an unladen weight of 1,680 to 1,900 kg, a length of 2,885 to 2,997 mm, a width of 1,594 to 1,626 mm, a height of 1,314 to 1,391 mm, torque of 149 to 181 Nm and a rated speed of 2,000 to 2,200 rpm.
One of the two tractors was available with either a petrol or a diesel engine, the other with diesel only; standard tractors of this mid power class were built for mixed arable and livestock farms. Tractors of this kind formed the backbone of many small and medium family farms in their day, before larger and more powerful ranges took over the market.
Buyers of used units should check the fuel system appropriate to the engine variant, as well as the clutch, gearbox and hydraulics, and rust on the bodywork and mudguards; on these older models spares run mostly through collectors and dealers specialising in classic tractors. The alternator, starter motor and the seals on the engine and gearbox also deserve attention during inspection.
Sources: SpecCodex register, model data: Oliver / Brown (weitere Modelle)
Technical data
Engine
| Fuel | Benzin/Dieselcorrect |
|---|---|
| Power | 35 hp (25.7 kW)correct |
| Rated speed | 2,000 rpmcorrect |
| Torque | 149 Nmcorrect |
| Speed at max. torque | 1,175 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 2,523 cm³correct |
| Bore | 88.9 mmcorrect |
| Stroke | 101.6 mmcorrect |
| Compression ratio | 17correct |
| Injection pressure | 172 barcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 2,885 mmcorrect |
|---|---|
| Width | 1,594 mmcorrect |
| Height | 1,314 mmcorrect |
| Wheelbase | 1,911 mmcorrect |
| Ground clearance | 390 mmcorrect |
| Unladen weight | 1,680 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 6 V/2 Rcorrect |
| Front tyres | 5.50-16correct |
| Rear tyres | 11-28correct |
| Top speed | 25 km/hcorrect |
Origin and approval
| Construction | frame constructioncorrect |
|---|---|
| Units built | 1,648correct |
Where this model stands
Power-to-weight ratio: 15.3 kW/t (26 kW / 1.7 t)
Power class: Compact (< 40 hp)
Stronger than 21% 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 Oliver / Brown 500 have?
The Oliver / Brown 500 delivers 35 hp.
How much does the Oliver / Brown 500 weigh?
The unladen weight is 1,680 kg.
What engine does the Oliver / Brown 500 have?
4 cylinders, 2,523 cm³ displacement, Benzin/Diesel.
How fast does the Oliver / Brown 500 go?
Top speed is 25 km/h.
What are the dimensions of the Oliver / Brown 500?
2,885 mm × 1,594 mm × 1,314 mm.
When was the Oliver / Brown 500 built?
Production years: 1961–1963.
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.
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 26 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
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.
