Farmall
Farmall F-20
The Farmall F-20 was originally advertised as the "Increased-Power Farmall", and was similar to the orginal Farmall. The tractor paint scheme changed from gray to red on November 1, 1936 (the beginning of the 1937 production year). A number of F-20s were built in early 1934 using the Farmall Regular rear end and F-20 engine. These tractors are identified by a TA serial number prefix.
Power29 hp[P]
Founded1932 - 1939
ModelF-20
Technical Specifications
Detailed specifications and technical data for Farmall F-20
Power
| Plows | 2 |
|---|---|
| Belt (tested) | 28.0 hp (20.9 kW) |
| PTO (claimed) | 26.67 hp (19.9 kW) |
| Drawbar (tested) | 20.66 hp (15.4 kW) |
| Drawbar (claimed) | 19.6 hp (14.6 kW) |
Tires
| Ag rear | 40x6 (steel), 42x12 (steel), 9.00x36 |
|---|---|
| Ag front | 25x4 (steel) |
Engine
| Cooling | liquid-cooled vertical I-head |
|---|---|
| Aux. fuel | 0.875 gal (3.3 L) |
| Cylinders | 4-cylinder |
| Fuel tank | 13 gal (49.2 L) |
| Fuel type | distillate |
| Rated RPM | 1200 |
| Bore/Stroke | 3.75x5.00 inches (95 x 127 mm) |
| Displacement | 220.9 ci (3.6 L) |
| Firing order | 1-3-4-2 |
| Manufacturer | International Harvester |
| Coolant capacity | 40 qts (early) (37.9 L), 29 qts (late) (27.4 L) |
Dimensions
| Width | 86 inches (218 cm) |
|---|---|
| Length | 140 inches (355 cm) |
| Weight | 4400 lbs (1995 kg) |
| Wheelbase | 85 inches (215 cm) |
| Rear tread | 74 inches (187 cm), 57 inches (144 cm) (Narrow and Fairway model F-20) |
| Front tread | 8.5 inches (21 cm) |
| Height (hood) | 58 inches (147 cm) |
| Height (steering wheel) | 67 inches (170 cm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical band brakes |
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Type | Row-Crop tractor |
|---|---|
| Notes | The Farmall F-20 was originally advertised as the "Increased-Power Farmall", and was similar to the orginal Farmall. The tractor paint scheme changed from gray to red on November 1, 1936 (the beginning of the 1937 production year). A number of F-20s were built in early 1934 using the Farmall Regular rear end and F-20 engine. These tractors are identified by a TA serial number prefix. |
| Built in | Rock Island, Illinois, USA |
| Total built | 154,398 |
| Original price | $1000 in 1936 |
| Years produced | 1932 - 1939 |
Belt Pulley
| RPM | 654 |
|---|---|
| Speed | 2395 ft/min (730.00 meters/min) |
| Width | 6.5 inches (16 cm) |
| Diameter | 14 inches (35 cm) |
Transmission
| Type | sliding gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Clutch | 279.4mm mechanical dry disc |
Serial Numbers
| 1932 | FA-501 |
|---|---|
| 1933 | ------ |
| 1934 | FA-3001 |
| 1935 | FA-9760 |
| 1936 | FA-41123 |
| 1937 | FA-72982 |
| 1938 | FA-112201 |
| 1939 | FA-136042 |
| Final | FA-148810 |
| 1934 (old style countershaft) | TA-135000 |
Power Take-off (PTO)
| Rear PTO | transmission |
|---|---|
| Engine RPM | 505@1200 |
| Rear PTO Type | 540 (1.125) |