| Production | |
| Manufacturer | Farmall (a part of International Harvester) |
| Row-Crop tractor | |
| Built in Rock Island, Illinois, USA | |
| Total built | 154,398 |
| Original price was $1000 in 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 Engine | |
| International Harvester 3.6L 4-cyl distillate | |
| Fuel tank | 13 gal 49.2 L |
| Aux. fuel | 0.875 gal 3.3 L |
| Farmall F-20 Transmission | |
| 4-speed sliding gear | |
| 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 | |
| Two-wheel drive | |
| Manual steering | |
| Mechanical band brakes | |
| Open operator station. |
| Photos | |
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| Power Take-off (PTO) | |
| Rear PTO | transmission |
| Rear PTO Type | 540 (1.125) |
| Engine RPM | 505@1200 |
| Dimensions & Tires | |
| Wheelbase | 85 inches 215 cm |
| Weight | 4400 lbs 1995 kg |
| Front tire | 25x4 |
| Rear tire | 40x6 |
| F-20 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 | TA-135000 (old style countershaft) |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 14 inches 35 cm |
| Width | 6.5 inches 16 cm |
| RPM | 654 |
| Speed | 2395 ft/min 730.00 meters/min |
| References | |
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| Farmall Tractor Model F-20 (MC-D 3075) published in 1932 | |
| International Tractors - The Line That Offers You A Choice published in 1933, by International Harvester | |
| McCormick-Deering Tractors - Modern Agricultural Power published in 1933, by International Harvester |
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on January 11, 2022 |