Farmall FG
Built: from 1940 · Series: Other models
More machines from model year 1940
Farmall FG: American farm tractor by International Harvester with a four-cylinder petrol engine, 20 hp and rear-wheel drive, built from 1940, 1,543 units made
Farmall was the tractor brand of the American International Harvester Company, which was formed in 1902 from the merger of the farm-machinery makers McCormick and Deering and went on to become one of the largest farm-equipment groups in the United States. The FG dates from 1940 and represents the brand's classic pre-war construction. 1,543 units of this model were built – a modest number compared with Farmall's large mass-produced ranges.
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The four-cylinder petrol engine of 2,040cc produces 20 hp (14.7 kW) at 1,650 rpm and drives the rear wheels through a four-speed gearbox. At 1,830 kg, the FG reaches a top speed of 14.7 km/h. The block construction with an auxiliary frame uses the engine block as a load-bearing element, supplemented by an additional frame.
A petrol-engined rear-wheel-drive tractor of this power class was built for row-crop farming with simple mounted implements. Block construction with an auxiliary frame is lighter and cheaper than a full ladder-frame chassis, but transmits engine vibration more directly into the chassis.
When buying one of these tractors second-hand, the carburettor and ignition system of the petrol engine matter, since different wear parts need checking than on a diesel engine, along with the synchromesh and gears of the four-speed gearbox. As only 1,543 units were built, original parts are correspondingly scarce and often have to be remanufactured.
Sources: SpecCodex-Register: Kennwerte des Modells FG
Technical data
Engine
| Fuel | petrolcorrect |
|---|---|
| Power | 20 hp (14.7 kW)correct |
| Rated speed | 1,650 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 2,040 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Unladen weight | 1,830 kgcorrect |
|---|
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 4-Ganggetriebecorrect |
| Top speed | 14.7 km/hcorrect |
Origin and approval
| Construction | unit construction with subframecorrect |
|---|---|
| Units built | 1,543correct |
Where this model stands
Power-to-weight ratio: 8 kW/t (15 kW / 1.8 t)
Power class: Compact (< 40 hp)
Stronger than 7% 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 Farmall FG have?
The Farmall FG delivers 20 hp.
How much does the Farmall FG weigh?
The unladen weight is 1,830 kg.
What engine does the Farmall FG have?
4 cylinders, 2,040 cm³ displacement, Benzin.
How fast does the Farmall FG go?
Top speed is 14.7 km/h.
When was the Farmall FG built?
Production years: 1940–?.
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.
- 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 14 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.
