Big Bud 402 tractor

Big Bud 402

Power

402 hp

Production

1986-1989

Engine

Turbocharged intercooled diesel, 6-cylinder

Transmission

Full power shift

Weight

40,000 lbs [18144 kg]

Drive

4WD

Introduction

Big Bud 402: High-Capacity Four-Wheel Drive Tractor

The Big Bud 402 is a heavy-duty four-wheel drive tractor produced between 1986 and 1989 in Havre, Montana, USA. Designed for large-scale agricultural operations, this machine represents a niche segment of high-horsepower tractors, with only two units ever manufactured.

Engine and Performance

The tractor is powered by a Caterpillar 3406B engine, a 14.6-liter (893 ci) six-cylinder turbocharged and intercooled diesel unit. It produces a rated output of 402 hp (299.8 kW) at 2100 engine RPM. The engine features a liquid-cooling system and utilizes an electric starter for operation.

Transmission and Drivetrain

The drivetrain consists of a full power shift transmission offering 12 forward and 2 reverse gears, allowing for on-the-go shifting without the need for a manual clutch. The tractor utilizes a 4x4 four-wheel drive system to maximize traction during heavy draft applications.

Mechanical and Dimensions

The machine is equipped with hydrostatic power steering to assist the operator in maneuvering the heavy frame. The tractor has a base operating weight of 40,000 lbs (18,144 kg), ensuring significant ground pressure for traction. A standard cab is provided to house the operator.

Conclusion

The Big Bud 402 is a specialized agricultural machine characterized by its substantial weight and high-horsepower Caterpillar engine. Its limited production run makes it a rare example of 1980s American heavy tractor engineering, intended for intensive field work requiring significant drawbar capacity.

Production Information of Big Bud, 402

  • Four-wheel Drive (4WD) tractor
  • Built in Havre, Montana, USA
ManufacturerBig Bud
Total built2

Dimension and Tires Information of Big Bud, 402

Weight40,000 lbs [18144 kg]

Engine Specifications of Big Bud, 402

  • Caterpillar 3406B
  • Liquid-cooled
  • Turbocharged intercooled diesel
  • 6-cylinder
Power402 hp [299.8 kW]
Displacement893 ci [14.6 L]
Rated RPM2100
Bore/Stroke5.40x6.50 inches [137 x 165 mm]
Starter typeElectric

Transmission Information of Big Bud, 402

Transmission variants 1

TypeFull power shift
Gears12 forward and 2 reverse

Mechanical Specs of Big Bud, 402

  • Cab standard.
Drive4x4 4WD
SteeringHydrostatic power

Power Information of Big Bud, 402

Engine402 hp [299.8 kW]

Electrical System of Big Bud, 402

GroundNegative

Where it sits

With 402 HP, the Big Bud 402 sits between 400/30 (400 HP) and 440 (440 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 402 have?

The Big Bud 402 delivers 402 HP.

What years was the Big Bud 402 produced?

The Big Bud 402 was produced in 1986-1989.

What engine does the Big Bud 402 have?

The Big Bud 402 is powered by a Turbocharged intercooled diesel, 6-cylinder engine.

What transmission does the Big Bud 402 use?

The Big Bud 402 uses a Full power shift transmission.

How much does the Big Bud 402 weigh?

The Big Bud 402 weighs 40,000 lbs [18144 kg].

Is the Big Bud 402 4WD?

The Big Bud 402 is available in 4WD.

Compare the Big Bud 402 with another model