The Zetor 4911 is a farm tractor produced by Zetor from 1977 to 1980 as part of the UR1 9 Series. It features a 2.7L 3-cylinder liquid-cooled diesel engine producing 45 hp (33.6 kW) at 2200 RPM with a torque of 31.9 lb-ft (43.3 Nm) at 1450 RPM. The tractor has a 10-speed transmission with 10 forward and 2 reverse gears. It is a two-wheel drive model with an open operator station, with a cab available as an option. The rear lift capacity is 2977 lbs (1350 kg) and the rear PTO operates at 540/1000 RPM. Dimensions include a 78 inch (198 cm) wheelbase and 133 inch (337 cm) length, with front tires sized 7.50-16 and rear tires 12.4-36. Variants include the 2WD 4911 and the 4WD 4945.