The Zetor 3511 is a farm tractor produced by Zetor in Brno, Czechoslovakia from 1968 to 1972. It features a 2.3L 3-cylinder liquid-cooled diesel engine producing 39 hp (29.1 kW) with a 10-speed gear transmission. The tractor is two-wheel drive with manual steering and mechanical drum brakes. It has an open operator station and a rear Type II hitch with a lift capacity of 2205 lbs (1000 kg). The rear PTO is independent with 540/1000 rpm options. The tractor weighs 3351 lbs (1520 kg) and has a wheelbase of 75.59 inches (191 cm). Front tires are 6.00-16 and rear tires are 12.4-28. Variants include the 3511 2WD and 3545 4WD models.