The Fahr D540 is a farm tractor produced by Fahr from 1955 to 1958 with a total of 866 units built. It is powered by a Deutz F4L514 5.3L 4-cylinder air-cooled diesel engine producing 60 hp (44.7 kW). The tractor features a ZF A26 5-speed gear transmission with 2 reverse gears. It has a wheelbase of 90.6 inches (230 cm), length of 153.1 inches (388 cm), width of 78.3 inches (198 cm), height of 91.5 inches (232 cm), and weighs 7650 lbs (3470 kg). The D540 is a two-wheel drive tractor with manual steering and an open operator station.