Big Bud

Big Bud 440

The Big Bud 440 is a four-wheel drive (4WD) tractor produced by Big Bud from 1987 to 1989. It is part of the 4 Series and was built in Havre, Montana, USA, with only 2 units produced. It features a Komatsu 15.2L 6-cylinder turbocharged aftercooled diesel engine delivering 440 hp (328.1 kW) at 2100 RPM. The tractor has a 12-speed full power shift transmission with 12 forward and 2 reverse gears. It has hydrostatic power steering, a standard cab, and weighs 40,000 lbs (18144 kg). The electrical system uses a negative ground.
Power440 hp
Founded1987 - 1989
Model440

Technical Specifications

Detailed specifications and technical data for Big Bud 440

Power
Engine440 hp (328.1 kW)
Engine
Typeturbocharged aftercooled diesel
ModelKomatsu SA6 D140
Power440 hp (328.1 kW)
Coolingliquid-cooled
Cylinders6-cylinder
Rated RPM2100
Bore/Stroke5.51x6.50 inches (140 x 165 mm)
Displacement930 ci (15.2 L)
Starter typeelectric
Dimensions
Weight40,000 lbs (18144 kg)
Electrical
Groundnegative
Mechanical
Cabstandard
Drive4x4 4WD
Steeringhydrostatic power
Production
TypeFour-wheel Drive (4WD) tractor
Series4 Series
Built inHavre, Montana, USA
Total built2
ManufacturerBig Bud
Years produced1987 - 1989
Transmission
Typefull power shift
Gears12 forward and 2 reverse