The Wheel Horse RJ-58 is a 1958 lawn tractor built by Wheel Horse in South Bend, Indiana, USA. It features engine options including a 4HP Kohler 145cc 1-cylinder gasoline engine and a 3.6HP Clinton 1-cylinder gasoline engine. The tractor uses a Uni-Drive belt-driven transmission with 3 forward gears and 1 reverse gear. It has a width of 32 inches (81 cm), two-wheel drive, manual steering, and an open operator station.