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Big Bud Tractor. Big Bud Tractor. 16-V 747 Big Bud The World's Largest Farm Tractor. In 1977 the Big Bud 747 tractor was built in Havre, Montana. The tractor was built by Ron Harmon and the crew of the Northern Manufacturing Company. The tractor was built to produce 760 horsepower using a 16-cylinder Detroit Diesel engine. The tractor measures 27 feet long, 20 feet wide, and 14 feet tall.
The truck has four stroke diesel engines; its AC electric alteration is powered by 20 cylinders which also supplies the power to its electric motor which is fitted at every side of the rare axle of the truck. This biggest truck takes the 8th position among the 10 largest trucks of the world. 4. Liebherr T 284 â The Liebherr T 284 is most recent class of trucks from Liebherr, payload limit is 400t and gross weight of 661 ton. The general length of this largest truck is 15.69m, with a width and respectively 7.42m is the loading height.