The Kubota JB13 is a sub-compact utility tractor produced from 2006 to 2008 as part of the JB Bullstar Series. It features a Kubota D722 0.7L 3-cylinder liquid-cooled diesel engine producing 12.9 hp (9.6 kW) at 2600 RPM. The tractor has a 6-speed transmission with 6 forward and 2 reverse gears, a dry disc clutch, and offers both manual and optional power steering. It is equipped with four-wheel drive, wet disc brakes, and a two-post ROPS for safety. The JB13 has a wheelbase of 50 inches (127 cm), weighs 1213 lbs (550 kg), and uses 4.00-12 front tires and 7-16 rear tires. The rear PTO operates at 540 RPM. Variants include the wheeled JB13 and the half-track JB13-PC. Related models include the JB11, JB13X, and JB14.