David Brown PD25
Built: 1950-1950 · Series: Other models
More machines from model year 1950
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Built in 1950, the David Brown PD25 is a tractor from David Brown. The four-cylinder engine, displacing 2.5 litres, produces 23 kW.
It measures 2.87 m in length and 1.70 m in width. Unladen weight is 1,720 kg.
Within the range, rated power spans from 10.6 to 66.9 kW; with 23 kW, the PD25 sits at the bottom end. Directly alongside are the 25D with 22.5 kW below and the 770 Selectamatic with 23.9 kW above.
David Brown – other models: from the VAK1 to the Selectamatic ranges from Meltham, 10.6 to 69.9 kW, two- to six-cylinder engines, diesel, TVO paraffin and petrol
This collective page gathers David Brown tractors outside the named series. From 1936 the company built the Ferguson-Brown Type A jointly with Harry Ferguson, then went it alone from 1939 at Meltham near Huddersfield in England. In 1965 it introduced the Selectamatic range (880, 990, 995) with a new control concept for hydraulics and the power take-off. In 1972 the American group Tenneco took over the marque through Case, and by the 1980s David Brown had been fully absorbed into Case. Alongside diesel, many British models also offered paraffin carburettor engines on the TVO (Tractor Vaporising Oil) principle, or plain petrol.
Read on 3 more paragraphs
The register lists 82 versions from 10.6 to 69.9 kW with two- to six-cylinder engines of 1,262 to 5,392 cm³. Unladen weights range from 950 to 3,356 kg, lengths from 2,230 to 4,250 mm, widths from 1,110 to 2,350 mm, and torque from 156 to 329 Nm.
David Brown ranked among the major British tractor makers alongside Ferguson, Fordson and International Harvester, supplying mainly the domestic and Commonwealth markets. The Selectamatic technology of the 1960s was regarded as advanced and influenced later Case ranges.
When buying older paraffin and TVO models, check the carburettor and pre-heating system; on Selectamatic models, check the hydraulic spool valves and PTO clutch. Rust on wings and gearbox housings is common on post-war British tractors, and spares today come mainly through specialists in classic British farm machinery and the Case IH network.
Sources: Kennwerte der Modelle David Brown (weitere Modelle)
Technical data
Engine
| Power | 23 kWcorrect |
|---|---|
| Cylinders | 4correct |
| Displacement | 2,530 cm³correct |
Dimensions and weights
| Length | 2,870 mmcorrect |
|---|---|
| Width | 1,700 mmcorrect |
| Unladen weight | 1,720 kgcorrect |
Drivetrain and chassis
| Gears | 6correct |
|---|
Where this model stands
Power-to-weight ratio: 13.4 kW/t (23 kW / 1.7 t)
Power class: Compact (< 40 hp)
Stronger than 18% of the tractors in the register — out of 15,659 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the David Brown PD25 have?
The David Brown PD25 delivers 23 kW.
How much does the David Brown PD25 weigh?
The unladen weight is 1,720 kg.
What engine does the David Brown PD25 have?
4 cylinders, 2,530 cm³ displacement.
What are the dimensions of the David Brown PD25?
2,870 mm × 1,700 mm.
When was the David Brown PD25 built?
Production years: 1950.
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.
- 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 8 individual figures for this model. They come from 2 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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