The Bolens 1556 is a 1972 garden tractor from the Tube Frame Series. It features a 15 hp Tecumseh HH150 453cc 1-cylinder air-cooled gasoline engine with electric start. The tractor uses an Eaton 10 hydrostatic transmission with infinite forward and reverse gears. It has two-wheel drive with manual steering and an open operator station. Dimensions include a 43 inch wheelbase, 63 inch length, 34 inch width, and 40 inch height, weighing 680 lbs. Tires are 16x6.50-8 front and 23x10.50-12 rear. Attachments include a mid-mount 3-blade mower deck. Electrical system has a 12 volt battery with negative ground.