The Sears Custom 600 917.2509 is a lawn tractor built by Roper and distributed by Sears from 1966 to 1967. It features a 6 hp Tecumseh H60 gasoline engine with a 221 cc displacement, air-cooled horizontal-shaft design, and electric starter. The tractor has a 3-speed belt-driven gear transmission with 3 forward and 1 reverse gears, two-wheel drive, manual steering, and an open operator station. It originally sold for $440 in 1966. Attachments include a 36-inch mid-mount mower deck with manual lift.