The Sears SS-15 917.2538 is a 1972 garden tractor built by Roper and distributed by Sears. It features a 15 hp Briggs & Stratton 531cc 1-cylinder gasoline engine with electric start, a 6-speed belt-driven gear transmission with 6 forward and 2 reverse speeds, and two-wheel drive with manual steering. The tractor has an open operator station and optional Sears 3-point hitch. It weighs 665 lbs (301 kg) and rides on 16x6.50-8 front and 23x9.50-12 rear lawn/turf tires. Attachments include 42" and 48" mid-mount mower decks and a 46" front-mount blade.