The Chamberlain C456 is a farm tractor produced starting in 1973 by Chamberlain in Welshpool, Australia. It features a Perkins 3.5L 4-cylinder liquid-cooled diesel engine delivering 56 hp net power. The tractor has a 9-speed transmission with 9 forward and 3 reverse gears arranged in three ranges. It is a two-wheel drive tractor with mechanical rear differential lock and mechanical steering with optional power assist. The PTO is independent with a wet disc clutch and operates at 540 RPM at 1600 engine RPM. Hydraulics provide 2250 psi pressure with a 6 gpm pump flow. The tractor has a rear Type II hitch and an open operator station. Dimensions include an 81 inch wheelbase, 127.5 inch length, 62.25 inch height, and a weight of 6682 lbs.