The CO-OP model G is a row-crop tractor built by Cletrac in Cleveland, Ohio, USA from 1939 to 1941. It is essentially the same as the Cletrac General GG. It features a Hercules IXA3 1.9L 4-cylinder liquid-cooled gasoline engine, a 3-speed gear transmission with 1 reverse, and two-wheel drive with manual steering. The tractor has an open operator station and a mid PTO type 560. It was built with a wheelbase of 80 inches, length of 118 inches, and a hood height of 55 inches. The shipping weight is 2105 lbs and ballasted weight is 3115 lbs. The tractor uses 5.50-16 front tires and 9-24 rear tires. Power output includes a claimed 18 hp belt power and tested drawbar power of 14.26 hp. Total production was 7,527 units.