This is Big Bud. For many years it was the largest tractor in the world. It was built by Ron Harmonn’s crew in Montana. The largest Big Bud 747 appeared in 1977 for deep plowing on a cotton farm in California. Only imagine: this tractor weighs over 45 tons! And it still runs, though some manufactures build even bigger tractors today.
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 tires were specially made by United Tire Company of Canada and are 8 feet in diameter. When the 1,000 gallon fuel tank is full the tractor tips the scales at over 100,000 pounds.
Equipped with custom-built tires, made by United Tire Company of Canada, Big Bud can work more than an acre of land in just one minute. The Williams Brothers made some minor modifications to the engine, and the tractor is now able to produce 900 bhp, instead of the initial 760 bhp.
