The Wheel Horse Suburban 551 is a 1961 lawn tractor manufactured by Wheel Horse in South Bend, Indiana, USA. It features a 5.5 hp Tecumseh H55D 199cc 1-cylinder air-cooled gasoline engine with electric start. The tractor has a Uni-Drive 3-speed gear transmission with 3 forward and 1 reverse gears, two-wheel drive, and manual steering with an open operator station. It uses 16x4.00-8 front tires and 22x6.00-12 rear tires. Electrical system is 12 volts with negative ground. Attachments include a 32" mid-mount mower deck, snowblower, and blade. The mower deck is a mid-mount Wheel Horse RMR-32 with 2 blades and manual lift, cutting width of 32 inches, weight of 60 lbs, and cut height from 1 to 3.5 inches. The blade is a front-mount Wheel Horse SPR-42 with 42 inches width and 55 inches height. The snow blower is a front-mount Wheel Horse ST-30, single-stage with 30 inches width.