The Kubota KB21X is a sub-compact utility tractor that was manufactured by Kubota between the years 2009 and 2014. It features a 20.7 hp Kubota D1105 three-cylinder diesel engine with a displacement of 68.5 cubic inches and a liquid-cooling system. This model is particularly suited for varied utility tasks around a property, such as mowing, light grading, and hauling. It operates with a Glideshift transmission, which provides 36 forward gears and 24 reverse gears, allowing for a range of speed choices. The KB21X is designed with a four-wheel drive (4WD) chassis and offers power steering for easier navigation. It comes with Standard agricultural tires, sized 6.00-12 at the front and 9.5-20 at the rear. The tractor is available in two configurations: ROPS (roll-over protection structure) and an enclosed cab, with the weight and dimensions varying slightly between them. The Kubota KB21X is equipped with an electric starter, a Category 3 hitch, and it presents significant ground clearance at 13.8 inches which facilitates operation on uneven terrain.