The McCulloch D-20 is a compact utility tractor built by Kubota and imported into the United States in the late 1960s before Kubota officially entered the market. It features a Kubota 2-cylinder liquid-cooled diesel engine producing 20 hp, a 6-speed gear transmission with 2 reverse speeds, two-wheel drive, and an open operator station. The tractor includes a rear Type I hitch and a 540 rpm rear PTO.