The Bolinder-Munktell 30-40 is a standard-tread farm tractor produced from 1913 to 1915 by Bolinder-Munktell in Eskilstuna, Sweden. A total of 31 units were built. It features a Bolinder 14.4L 2-cylinder liquid-cooled kerosene engine producing 40 hp (29.8 kW) at 550 RPM. The tractor has a 3-speed gear transmission with 3 forward and 1 reverse gears, two-wheel drive, and an open operator station with canopy. It weighs 18,298 lbs (8,299 kg) and has a 37-gallon (140 L) fuel tank.