The Yard Machines 13.5 is a lawn tractor manufactured by Yard Machines, a part of MTD. It features a 13.5 hp Tecumseh gasoline engine with a 1.5 gallon (5.7 L) fuel tank and a 6-speed transmission with 6 forward gears. The tractor is two-wheel drive with manual steering and an open operator station. It includes a mid PTO controlled manually and rides on 15 X 6 front tires and 20 X 8 rear tires. The tractor comes equipped with a 38 inch (96 cm) mid-mount mower deck. Electrical system uses a 12 volt battery with negative ground.