The Craftsman 131.9631 is a lawn tractor produced from 1969 to 1971 by Roper and distributed by Craftsman, a part of Sears. It features a 6 hp Tecumseh V60 221cc 1-cylinder air-cooled gasoline engine with manual recoil start. The tractor has a 3-speed belt-driven gear transmission with 3 forward and 1 reverse gears, two-wheel drive, and manual steering. It has an open operator station and weighs 260 lbs (117 kg). Dimensions are 50.5 inches long, 29.25 inches wide, and 31.5 inches high at the steering wheel. Tires are 10.00x3 front and 12.50x4.5 rear. Attachments include a 26-inch mid-mount Craftsman mower deck with a single blade and manual lift, offering 5 cut positions. There is a variant model 131.9635 with electric start.