The Holder A21 is a farm tractor manufactured by Holder. It features a 2-cylinder diesel engine producing 19.7 hp (14.7 kW) and an 8-speed transmission with 8 forward and 4 reverse gears. The tractor is equipped with four-wheel drive and a rear PTO type of 540. Dimensions include a wheelbase of 51.2 inches (130 cm), length of 110.2 inches (279 cm), width of 33 inches (83 cm), height of 41.3 inches (104 cm), and a weight of 2,315 lbs (1050 kg). The ground clearance is 9.3 inches (23 cm). Both front and rear tires are sized 7.00x18.