In the International model introduced in 1968, the British model 444 was also taken into production in the USA to replace the 404. The only American-based 4-cylinder model was the 544. Its 3.9-liter diesel engine was imported from Germany. The 544 was available with a basic 5+1 gearbox, a quick-shift version with 10+2, and a hydrostatic transmission. The era of row-crop tractors equipped with dual front wheels was coming to an end, but the 544 was still available as a tall Farmall version and as a compact International.

In 1972, the updated 66 series was introduced, whose smallest model was the 6-cylinder 666. Its engine power was 75 hp and 90 hp in the Hydro version. Below the 666, the 564 was introduced, which was the 654 manufactured in Germany. In 1973, the 666 Hydro was renamed the 70 Hydro.

This is an automated translation. Please report any issues in the translation.