The Allis Chalmers ED40 is a utility tractor produced from 1960 to 1968. Built in Essendine, Lincolnshire, England, it features a Standard Ricardo 2.3L 4-cylinder liquid-cooled diesel engine producing 41 hp. The tractor has an 8-speed gear transmission with 2 reverse gears, two-wheel drive, mechanical rear differential lock, and manual steering. It includes an open operator station and mechanical drum brakes. The ED40 offers a live optional rear PTO with 540 RPM at 1700 engine RPM. Hydraulics are open center type with 2500 psi pressure and 6.4 gpm pump flow. Dimensions include a 76.4 inch wheelbase, 114 inch length, and 63 inch minimum width. It weighs 3527 lbs and rides on 4.00x19 or 6.00x16 front tires and 10x28 or 11x28 rear tires.