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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 worldâs biggest production tire â the 63-inch Titan. July 31, 2008 Mine operators are increasingly adopting larger equipment to lower operating costs and a new class of ultra-large machinery is demanding bigger tyres. Earlier this week, Titan Tire shipped its first giant 63-inch off-the-road (OTR) tire and wheel assemblies.