In 1973, Belaruksen the cab came to a Swedish Fernmo-cabin models MTZ-501 and 521.
In 1975 came into production in 1972, presented in a more efficient, direct injection with MTZ-80/82. It was the 1000 round of the PTO, which was coupled with the key under the tractor. The gearbox was a mechanical gear change, which doubled the gears 18 + 4 and gave a road speed of 33 km / h. The differential lock is automatically released from the wheels turning. Hydraulic outlets was standard as many as three.