The Allis Chalmers HD11AG is an agricultural crawler tractor produced from 1967 to 1971. It features a turbocharged 6-cylinder diesel engine with 130 hp gross power and a 6-speed gear transmission with 3 reverse gears. The tractor has a crawler drive with an open operator station and runs on 16-inch tracks. It weighs 23000 lbs and has dimensions of 149 inches length, 95.9 inches width, and 77.7 inches height at the hood.