The Denning A is a farm tractor manufactured by Denning in 1912 in Cedar Rapids, Iowa, USA. It features a 2-cylinder gasoline liquid-cooled engine, a 2-speed transmission with 2 forward and 1 reverse gears, and delivers 6 hp drawbar power and 12 hp belt power. It has a 3x1 1WD drive with manual steering and an open operator station. The tractor weighs 2500 lbs (1134 kg) and is designed to pull 1 plow.