Production | |
| Manufacturer: | Farmall (a part of International Harvester) |
| Type: | Row-Crop tractor |
| Factory: | Rock Island, Illinois, USA |
| Total built: | 154,398 |
| Original price: | $1000 (1936 ) |
| 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. | |
Farmall F-20 Power | |
| Drawbar (claimed): | 19.6 hp 14.6 kW |
| PTO (claimed): | 26.67 hp 19.9 kW |
| Plows: | 2 |
| Drawbar (tested): | 20.66 hp 15.4 kW |
| Belt (tested): | 28.0 hp 20.9 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| Steering: | manual |
| Brakes: | mechanical band |
| Cab: | Open operator station. |
| Transmission: | 4-speed sliding gear |
Power Take-off (PTO) | |
| Rear PTO: | transmission |
| Rear RPM: | 540 (1.125) |
| Engine RPM: | 505@1200 |
F-20 Serial Numbers | |
| Location: | Serial number plate under the fuel tank of the Farmall F-20. |
| 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: | TA-135000 |
Engine Detail | |
| International Harvester | |
| distillate | |
| 4-cylinder | |
| liquid-cooled vertical I-head | |
| Displacement: | 220.9 ci 3.6 L |
| Bore/Stroke: | 3.75x5.00 inches 95 x 127 mm |
| Rated RPM: | 1200 |
| Firing order: | 1-3-4-2 |
| Coolant capacity: | 40 qts 37.9 L (early) |
| 29 qts 27.4 L (late) | |
Transmission | |
| Type: | sliding gear |
| Gears: | 4 forward and 1 reverse |
| Clutch: | 279.4mm mechanical dry disc |
Dimensions | |
| Wheelbase: | 85 inches 215 cm |
| Length: | 140 inches 355 cm |
| Width: | 86 inches 218 cm |
| Height (steering wheel): | 67 inches 170 cm |
| Height (hood): | 58 inches 147 cm |
| Weight: | 4400 lbs 1995 kg |
| Front tread: | 8.5 inches 21 cm |
| Rear tread: | 74 inches 187 cm |
| Rear tread: | 57 inches 144 cm*Narrow and Fairway model F-20 |