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IMT’s licensing agreement with MF ended in 1968. IMT retained the rights to tractors based on the MF 35 and 65, the 6+2 transmission, and prechamber diesels. However, what was significant was that IMT also obtained the rights to the basic structure and engine of the MF 175.

The first models based on the technology of the 175 were the 574 and its four-wheel-drive version, the 576, which appeared in the early 1970s. An improved version of it, designed for the Western market, was the four-wheel-drive model 579. In the 579, four-wheel drive was engaged automatically when slippage exceeded 5%; the driver could not engage four-wheel drive manually at all. Apparently, there were problems with this system, as later versions switched to selectable four-wheel drive. The steering wheel had tilt adjustment. Other models in the same series were the 575, 578, and 585. The differences between the models were based on rear/four-wheel drive, mechanical/hydrostatic steering, lifting capacity, and the transmission, which in some of the range was IMT’s own partially synchronized 10+2, based on their prior 6+2 design. The 578 differed from the 575 only in the use of an auxiliary cylinder in the lifting device.

In 1983, the product range was streamlined, and the rear- and four-wheel-drive 577 was introduced, with styling similar to that of the smaller new models and resembling the MF 500 series. The 577’s power had been increased by a couple of horsepower (70 DIN/77 SAE). The transmission was 10+2. In 1989, the turbocharged 585 and 590 were introduced, each with 85 horsepower. The latter had a 16+4 transmission. In the 2000s, only the 577 was available, offered in both traditional and new designs.

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