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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.
Farm, Lawn & Garden Tractors. Most tractors built in North America. All large Ag Tractors (7000, 8000 and 9000 Series both tires or tracks) built in Waterloo, Iowa. 4000, 5000 Series, 790 & 990 as well as Advantage Series 5105 & 5205 built in Augusta, GA. Lawn & Garden Tractors built in Horicon, Wisconsin. 6000 Series built in Mannheim, Germany.