In 1951, air-cooled Deutz series 3- and 4-cylinder tractors were introduced. The preceding models in these power classes had been water-cooled 2- and 3-cylinder models. The F3L's gearbox was the same Deutz own 5+1 as in the predecessor, with creeper gears available as an optional extra. In the F4L, unlike other Deutz engines, the engine was not a load-bearing structure, and the gearbox was most commonly a ZF 7+2.

In 1954, the power of the three-cylinder model increased to 45 horsepower, and a differential lock became standard. In 1956, a ZF 7+2 gearbox was introduced.

In 1962, the appearance was standardized with the newer D-series models, and these models continued above the newer ones until the mid-1960s. The F3L was known in some countries as the D50.

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