The Leyland 455 was a utility tractor produced starting in 1978. It was essentially a Leyland 255 model equipped with a four-wheel drive system installed by Four Wheel Traction Ltd. It features a Leyland 3.6L 4-cylinder liquid-cooled diesel engine, a 10-speed gear transmission with mechanical dry disc clutch, and power assist steering. The tractor has mechanical dry disc brakes, an open center hydraulic system with 7.9 gpm pump flow, and a rear PTO independent at 540 rpm. The rear hitch is category II/I with position and draft control.