The MTD 660 Eight Hundred is a garden tractor produced by MTD from 1973 to 1976. It features an 8 hp Briggs & Stratton 1-cylinder air-cooled gasoline engine with electric start, a Peerless 1217 belt-driven 3-speed transmission with 3 forward and 1 reverse gears, and two-wheel drive with manual steering. The tractor has a mid PTO with an independent manual clutch and comes equipped with a 34" mid-mount mower deck with 2 blades and manual lift. Tires are sized 13x6.5 front and 18x9.50 rear. Electrical system is 12 volts with negative ground.