Big Bud 747, or 16-V 747, is the name of a custom made tractor that was built in Havre, Montana, USA in 1977 by the Big Bud company. It holds the record for the world's largest farm tractor. It was built by Ron Harmon and employees of the Northern Manufacturing Company for a cost of about $300,000 (today ?). It was made for the Rossi Brothers; cotton farmers of Bakersfield, California, where it was used for 11 years for the purpose of deep ripping. Afterwards, it was purchased by Willowbrook Farms of Indialantic, Florida and used for the same purpose. Finally, in 1997, it was purchased by the Williams Brothers of Big Sandy, Montana, which is within 60 miles of where it was built. It was used on the Williams Brothers' farm in Chouteau County to pull an 80 foot cultivator, with which it cultivates one acre/minute at speeds up to 8 m.p.h. Today, the Big Bud 747 is displayed at the Heartlands Acres Agribitio Centre in Independence, Iowa.