Big Bud 747
Big Bud 747, world's largest tractor
World's Largest tractor
Model history
Model introduced 1977
Model discontinued 1977
Model status Discontinued
Engine Specification
Engine make Detroit Diesel
Engine model Series 92 16V92T
Fuel type Diesel
Power hp 760 (900 maxed out)
Governed rpm 1900
Displacement cu in /(litre) 1472 cu in
No. of Cylinders 16
Cooling system Water
Transmission Details
Transmission type Unknown
Forward 6
Reverse 1
Drive 4WD
Linkage Category Unknown
Tractor Dimensions
Length (inches/metres) 28.5 ft
Width (inches/meters) 20.9 ft
Height (inches/meters) 14 ft
Weight (nominal) lb/kg 100,000+ lbs
Wheelbase 16.25 ft
Other info
Factories Havre, Montana, USA
Plow rating Unknown
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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.

Big Bud 747 brochure - 1977

Big Bud 747 advertisement






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