International Harvester BTD-20

The International Harvester BTD-20 is an agricultural crawler tractor produced from 1959 to 1974. Built in Doncaster, England, a total of 3038 units were manufactured. It features a Rolls-Royce 12.2L 6-cylinder liquid-cooled diesel engine delivering 135 hp net power. The tractor has a 6-speed gear transmission with 6 forward and reverse gears, a crawler drive with bull gear final drives, and an open operator station. It rides on 20-inch wide tracks with a length on ground of 94 inches. The tractor measures 165.1 inches in length, 94 inches in width, and 89.7 inches in height, with an operating weight of 30300 lbs. The electrical system uses a generator for charging.