The ATC DT-34 Terratrac is an agricultural crawler tractor produced by ATC from 1952 to 1954. It features a Continental 4-cylinder diesel engine producing 31 hp (23.1 kW) and a 3-speed transmission with 3 forward and 1 reverse gears. The tractor is designed for crawler drive and can pull 3 14-inch plows. It was built in Churubusco, Indiana, USA.