The Custom B is a row-crop tractor produced from 1947 to 1949 by Custom in Shelbyville, Indiana, USA. It features a Chrysler 3.6L 6-cylinder gasoline engine producing 52 hp (38.8 kW), a 4-speed gear transmission, and two-wheel drive with manual steering and drum brakes. The tractor has an open operator station and a rear PTO driven by the transmission. It has a wheelbase of 88 inches (223 cm), length of 130 inches (330 cm), height of 71 inches (180 cm), and a shipping weight of 3450 lbs (1564 kg). The front tires are 6-16 and rear tires 10-38. The tractor can pull 2 or 3 14-inch plows. Variants include the B with a tricycle front and the C with a wide front.