The Roper T322 RT-13 is a garden tractor produced from 1973 to 1977 by Roper in Orangeburg, South Carolina, USA. It features a 13 hp Briggs & Stratton 494cc 1-cylinder gasoline engine, a 6-speed belt-driven gear transmission with 2 reverse gears, and two-wheel drive with manual steering. The tractor has an open operator station and uses a Roper Tri-Hitch. Dimensions include a 43.375 inch wheelbase, 65.125 inch length, 39.5 inch width, and 35 inch height. Tires are 16x5.50-8 front and 23x8.50-12 rear. Electrical system is 12 volts with negative ground. Attachments available include 42" and 48" mid-mount mower decks, a 39" snowblower, and a 46" front-mount blade. The T322 variant uses a gear transmission, while the related T323 model uses hydrostatic transmission.