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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.
This is what 109,000 horse power looks like â biggest engine in the world. 0 Shares. November 27, 2015November 27, 2015. November 27, 2015November 27, 2015. This jaw dropper is the WÃ¤rtsilÃ¤ RT-flex96C, the worldâs largest and most powerful diesel engine in the world today.