John Deere 520

The John Deere 520 is a row-crop tractor produced from 1956 to 1958 as part of the Two-Cylinder 20 Series. It was built in Waterloo, Iowa, USA, with a total production of 13,048 units including gasoline, LP-gas, and all-fuel versions. The tractor features a 3.1L 2-cylinder liquid-cooled engine available in gasoline, all-fuel, and LP gas variants, producing estimated power around 31.5 to 53.3 hp depending on the model. It has a 6-speed unsynchronized gear transmission with a dry disc clutch. The 520 supports 3 plows of 14-inch size, has a tested drawbar power of 33.30 hp and belt power of 37.52 hp. It has two-wheel drive with manual steering and optional power steering, differential mechanical expanding shoe brakes, and an open operator station. Fuel capacity varies by fuel type, with hydraulic system capacity of 2.5 gallons. The tractor hitch rear type is optional II, and it has an independent 540 rpm rear PTO. Dimensions include a 90-inch wheelbase, 132.75-inch length, 86.625-inch width, and 83.325-inch height, weighing 4,960 lbs unballasted and 6,600 lbs ballasted. Tires are 5.50-16 front and 12.4-36 rear. Attachments include a 45 loader with 2000 lbs lift capacity and 126 inches height at pin. Electrical system is positive ground with two 6-volt batteries. Serial numbers range from 5200000 in 1956 to 5213189 final. Related models include John Deere 420, 50, 530, and 620.