The BelAZ-7421 is an airport tug which started production by the BelAZ in 1974 with a towing capacity for a 200 tons aircraft.
In 1988 the BelAZ started production of the BelAZ-74211 with an increased capacity to 210 tons.
Later in 2002 the BelAZ started production of the BelAZ-74212 with an increased capacity to 260 tons.