the 1967 maz-543a, arrived (with extra carrying capacity up to 22000 kg). it served as the basis for several civilian vehicles, including the aa-60(543)-160 aerodrome fire-fighting vehicle (1973), the aa-70(543)-172 experimental emergency vehicle, and the ks-5571 crane. in 1974 at the exhibition of achievements of the national economy, a new prototype modification (maz-7310) was presented. it has been in production since 1976.