The Mitsubishi GS181 is a compact utility tractor produced from 2013 to 2017 as part of the GS Series. It features a Mitsubishi S3L 1.1L 3-cylinder liquid-cooled diesel engine producing 17.7 hp (13.2 kW) at 2500 RPM. The tractor has a 12-speed transmission with 12 forward and reverse gears, four-wheel drive, power steering, and a two-post ROPS for operator safety. It has a wheelbase of 54.3 inches (137 cm), weighs 1819 lbs (825 kg), and uses standard agricultural tires sized 6.00-12 front and 8.3-22 rear. The rear PTO operates at 540 RPM with various engine RPM settings. The GS181 is part of a series including the GS180 predecessor and GS182 successor models.