The Mitsubishi GS231 is a compact utility tractor produced from 2013 to 2017 as part of the GS Series. It features a 1.3L 3-cylinder liquid-cooled diesel engine producing 22.7 hp (16.9 kW) with a 12-speed transmission. The tractor includes four-wheel drive, power steering, and a two-post ROPS for operator safety. It has a wheelbase of 57.1 inches (145 cm), weighs 1940 lbs (879 kg), and uses standard agricultural tires sized 6-14 front and 9.5-22 rear. The rear PTO operates at 540 rpm with various engine RPM settings. Variants include the wheeled GS231 and the half-track GSK235. The GS231 is part of a series including models GS201, GS210, GS232, and GS251.