A tad different in design to increase ground clearance, the rear wheels on the F-20 are offset below the axle. This Farmall F-20 is on rubber, which, along with steel, was one of the wheel options available. International Harvester built a total of 154,398 F-20s during their 1932 to 1939 production run. They were powered by a 3.6L 4-cylinder distillate engine built by International Harvester that was capable of just over 26 HP at the PTO. The tractor produced a drawbar pull of 2334 lbs. The transmission had four closely spaced forward speeds (2.3 to 3.8 MPH) and a single 2.3 MPH reverse.
The paint on this one is certainly not gray, but it's not red either, making it difficult to estimate its year of manufacture. Introduced in 1932, the "F" series was the first of the Farmalls, all aimed at the small farmer, with a quarter section or less under cultivation.
The Farmall F-20 was originally advertised as the "Increased-Power Farmall", and was similar to the original Farmall. The tractor paint scheme changed from gray to red on November 1, 1936 (the beginning of the 1937 production year).
The International Harvester Company was formed by the merger of the McCormick Harvesting Machine Company and the Deering Harvester Company in 1902. The company had a number of early tractor models. The Farmall, in 1924, sparked a revolution in tractor design. The Farmall introduced the tricycle style row-crop tractor. It could not only plow, but was capable of precision work such as cultivating. International Harvester's agricultural operations were merged with the J. I. Case Company in 1985. Equipment is still manufactured under the Case IH name.
From Tractor Data