Specs of International agricultural tractors

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History of International Tractors

International Harvester (IH) was one of the leading agricultural tractor manufacturers for most of the 20th century. The company’s origins trace back to the production of large agricultural tractors under the Mogul and Titan brands, powered by gasoline engines. From 1911 to 1914, the Model C Mogul was introduced, mainly used as a stationary engine mounted on a tractor frame. However, in the 1920s, the popularity of these tractors began to decline as smaller and more economical models were preferred.
IH introduced its first large tractors in 1915, namely the 10-20 and 15-30 models. Although still large tractors, significantly smaller than previous models, they found application mainly in field work. Meanwhile, IH acquired several smaller companies to expand its product offerings.
In 1924, IH introduced the Farmall tractor, which was a smaller, more versatile tractor, competing with the Fordson tractors from Ford Motor Company. The Farmall became a leader in its category, and subsequent models from the “F-Series” continued this trend.
In 1932, the first tractors with diesel engines were produced, initially starting on gasoline and then switching to diesel fuel. The market also saw the introduction of the first crawler tractor with such an engine.
In 1939, a new line of tractors called the “Letter Series” was unveiled, and in 1941, the MD model was introduced. In the 1940s and 1950s, IH continued to develop its products, introducing additional models for small farms.
The 1960s brought new IH tractor models, such as the 706, 806, and 1206. In 1965, the first two-wheel-drive tractor, the model 1206, was introduced. IH continued to develop its products, introducing new models and technological innovations.
In the 1970s, IH introduced the 66 series, which included models like the 766, 966, 1066 Turbo, and others. In the 1980s, the company faced challenges related to competition and changes in the agricultural market. Despite some successes, International Harvester encountered financial difficulties and had to undertake a series of restructuring actions. By the late 1980s, IH decided to sell its line of agricultural machinery, and many innovative features introduced during that period were incorporated into later models by Case IH tractors.