The Lanz Bulldog D9500 is a standard-tread farm tractor produced by Lanz from 1935 to 1955 in Mannheim, Germany. It features a 10.3L single-cylinder liquid-cooled diesel engine producing 44.1 hp (32.9 kW) at 630 RPM. The tractor has a 3-speed gear transmission with 3 forward and 1 reverse gears, two-wheel drive, and an open operator station. Variants include models with 6-speed transmissions and high-speed road versions with or without a solid cab. Dimensions include a wheelbase of 80.2 inches (203 cm), length of 135.4 inches (343 cm), width of 71.7 inches (182 cm), height of 91.1 inches (231 cm), and weight of 7275 lbs (3299 kg).