Big Bud 440
Power
440 hp
Production
1987-1989
Engine
Turbocharged aftercooled diesel, 6-cylinder
Transmission
Full power shift
Weight
40,000 lbs [18144 kg]
Drive
4WD
Introduction
Big Bud 440 High-Horsepower Tractor
The Big Bud 440 is a heavy-duty four-wheel drive tractor produced by Big Bud in Havre, Montana, USA, between 1987 and 1989. With a total production run of only two units, this machine represents a specialized segment of high-capacity agricultural equipment designed for large-scale operations.
Engine and Performance
The tractor is powered by a Komatsu SA6 D140 six-cylinder diesel engine. This turbocharged, aftercooled power plant features a 930 cubic inch (15.2 L) displacement and is liquid-cooled for thermal management during intensive operation. It produces a rated output of 440 horsepower (328.1 kW) at a governed speed of 2100 RPM.
Transmission and Drivetrain
Power is transferred to the ground through a full power shift transmission offering 12 forward and 2 reverse gear ratios. This configuration allows for on-the-go shifting without the use of a clutch, which is essential for heavy draft applications. The machine utilizes a 4x4 four-wheel drive system to maximize traction.
Mechanical and Operational Features
The chassis is engineered with a base operating weight of 40,000 lbs (18,144 kg), providing the necessary mass for high-drawbar pull tasks. Steering is managed via a hydrostatic power steering system to assist the operator in maneuvering the heavy frame. The unit is equipped with a standard cab and utilizes an electric starter.
Conclusion
The Big Bud 440 is a rare, high-horsepower tractor engineered for demanding industrial or large-scale agricultural applications. Its robust mechanical design and specialized drivetrain configuration make it a significant example of American heavy equipment manufacturing from the late 1980s.
Production Information of Big Bud, 440
- Four-wheel Drive (4WD) tractor
- Built in Havre, Montana, USA
| Manufacturer | Big Bud |
|---|---|
| Total built | 2 |
Dimension and Tires Information of Big Bud, 440
| Weight | 40,000 lbs [18144 kg] |
|---|
Engine Specifications of Big Bud, 440
- Komatsu SA6 D140
- Liquid-cooled
- Turbocharged aftercooled diesel
- 6-cylinder
| Power | 440 hp [328.1 kW] |
|---|---|
| Displacement | 930 ci [15.2 L] |
| Rated RPM | 2100 |
| Bore/Stroke | 5.51x6.50 inches [140 x 165 mm] |
| Starter type | Electric |
Transmission Information of Big Bud, 440
Transmission variants 1
| Type | Full power shift |
|---|---|
| Gears | 12 forward and 2 reverse |
Mechanical Specs of Big Bud, 440
- Cab standard.
| Drive | 4x4 4WD |
|---|---|
| Steering | Hydrostatic power |
Power Information of Big Bud, 440
| Engine | 440 hp [328.1 kW] |
|---|
Electrical System of Big Bud, 440
| Ground | Negative |
|---|
Where it sits
With 440 HP, the Big Bud 440 sits between 402 (402 HP) and 450 (450 HP) in Big Bud's range. Its power puts it in the 99th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the Big Bud 440 have?
The Big Bud 440 delivers 440 HP.
What years was the Big Bud 440 produced?
The Big Bud 440 was produced in 1987-1989.
What engine does the Big Bud 440 have?
The Big Bud 440 is powered by a Turbocharged aftercooled diesel, 6-cylinder engine.
What transmission does the Big Bud 440 use?
The Big Bud 440 uses a Full power shift transmission.
How much does the Big Bud 440 weigh?
The Big Bud 440 weighs 40,000 lbs [18144 kg].
Is the Big Bud 440 4WD?
The Big Bud 440 is available in 4WD.