The Jacobsen Chief 6 53031 is a garden tractor produced from 1963 to 1964 by Jacobsen. It features a 6 hp Lauson HT60 1-cylinder air-cooled gasoline engine with a 3-speed transmission offering 3 forward and 1 reverse gears. The tractor has a wheelbase of 42 inches, weighs 385 lbs, and uses 4.80x8 front tires and 6x12 rear tires. It includes a 36-inch mid-mount mower deck attachment with a 2-blade design and adjustable cutting height from 1.5 to 4 inches. Electrical system is 12 volts with negative ground.