The Zetor 5516 is a half-track crawler tractor produced from 1968 to 1972 by Zetor in Brno, Czechoslovakia. It features a 3.1L 4-cylinder liquid-cooled diesel engine producing 60 hp (44.7 kW) at 2200 RPM. The tractor has a 10-speed transmission with 10 forward and 2 reverse gears, a half-track drive, and an open operator station. It is equipped with a rear Type II hitch with a lift capacity of 3594 lbs (1630 kg) and an independent rear PTO with 540 and 1000 RPM options. The tractor's wheelbase measures 89 inches (226 cm), weighs 5379 lbs (2439 kg), and runs on 6.00-20 front tires and tracks on the rear.