International Harvester DF 25 (A/T)
Built: 11/1950–1953 · Series: F-Reihe
More machines from model year 1950
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
International Harvester F-Reihe – collective page of IHC's DF 25 to FS types: two- to four-cylinder engines of 2,040 to 2,356 cm³, 14.6 to 18.3 kW, diesel and petrol versions
This collective page gathers International Harvester tractors listed in the register under the type designations DF 25 (A/T), FG, FG D-2 and FS. The letter F in the type designation was used by International Harvester across several ranges, and the suffixes D and G usually distinguish the diesel from the petrol version of the same basic design, as is also visible in this grouping.
Read on 3 more paragraphs
The register lists 4 versions with 14.6 to 18.3 kW from two- to four-cylinder engines of 2,040 to 2,356 cm³ displacement, two of them with a diesel engine and two with a petrol engine, unladen weights from 1,710 to 1,970 kg and rated speeds from 1,500 to 1,800 rpm; lengths range from 3,040 to 3,200 mm, widths from 1,640 to 2,000 mm, heights from 1,600 to 1,800 mm.
The F types gathered on this page cover a mid-power segment of classic field tractors and exemplify the range of drivetrain variants with which International Harvester offered both diesel and petrol tractors of the same power class across different markets.
On a used IHC F-type tractor, the condition of the respective engine counts, for the diesel versions especially the injection pump and injectors, for the petrol versions the carburettor and ignition system, along with rust on the frame and sheet-metal parts and the tightness of the gearbox and axles; because production has ended, parts are mostly only available through specialist dealers and collector circles.
Sources: SpecCodex register, model data: International Harvester F-Reihe
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 25 hp (18.3 kW)correct |
| Rated speed | 1,800 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 2,043 cm³correct |
| Bore | 80 mmcorrect |
| Stroke | 101.6 mmcorrect |
| Injection pressure | 150 barcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,180 mmcorrect |
|---|---|
| Width | 1,640 mmcorrect |
| Height | 1,800 mmcorrect |
| Wheelbase | 1,990 mmcorrect |
| Ground clearance | 420 mmcorrect |
| Unladen weight | 1,750 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 4V/1Rcorrect |
| Front tyres | 5.00-16correct |
| Rear tyres | 9.00-40 / 11.25-24correct |
| Top speed | 16.5 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|---|
| Units built | 3,555correct |
Where this model stands
Power-to-weight ratio: 10.5 kW/t (18 kW / 1.8 t)
Power class: Compact (< 40 hp)
Stronger than 12% 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 International Harvester DF 25 (A/T) have?
The International Harvester DF 25 (A/T) delivers 25 hp.
How much does the International Harvester DF 25 (A/T) weigh?
The unladen weight is 1,750 kg.
What engine does the International Harvester DF 25 (A/T) have?
4 cylinders, 2,043 cm³ displacement, Diesel.
How fast does the International Harvester DF 25 (A/T) go?
Top speed is 16.5 km/h.
What are the dimensions of the International Harvester DF 25 (A/T)?
3,180 mm × 1,640 mm × 1,800 mm.
When was the International Harvester DF 25 (A/T) built?
Production years: 11/1950–1953.
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.
Request a quote →
We ask the suppliers and come back with price and lead time.
Request spare parts →
This page carries 23 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 →
Other models in this series
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
