Big Bud KT400 tractor

Big Bud KT400

Power

450 hp

Production

1977-1978

Engine

Turbocharged diesel, 6-cylinder

Transmission

Fuller Road Ranger

Weight

40,000 lbs [18144 kg]

Drive

4WD

Introduction

Big Bud KT400 Four-Wheel Drive Tractor

The Big Bud KT400 is a heavy-duty four-wheel drive tractor produced by Big Bud in Havre, Montana, USA, between 1977 and 1978. It was designed to meet the requirements of large-scale agricultural operations needing high traction and reliable power output.

Engine and Performance

The tractor is powered by a 6-cylinder Cummins turbocharged diesel engine with a displacement of 1150 cubic inches (18.8 liters). It produces 450 horsepower (335.6 kW) at a rated speed of 2100 RPM. The engine utilizes a liquid-cooling system and an electric starter, with a bore and stroke of 6.25 by 6.25 inches (159 x 159 mm).

Transmission and Drivetrain

Power is transferred through a Fuller Road Ranger transmission, which provides 13 forward gears and 2 reverse gears. The drivetrain features a 4x4 configuration, ensuring power is distributed across all wheels for traction in field conditions. Steering is managed via a hydrostatic power system to assist the operator in maneuvering the heavy chassis.

Weight and Configuration

The machine has a base weight of 40,000 lbs (18,144 kg), which provides the necessary ballast for heavy draft applications. The unit is equipped with a standard cab to facilitate operator control during extended field operations.

Conclusion

The Big Bud KT400 serves as a heavy-duty prime mover intended for high-acreage farming and demanding soil-engaging tasks, reflecting the engineering standards of late 1970s American tractor manufacturing.

Production Information of Big Bud, KT400

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

Dimension and Tires Information of Big Bud, KT400

Weight40,000 lbs [18144 kg]

Engine Specifications of Big Bud, KT400

  • Cummins
  • Liquid-cooled
  • Turbocharged diesel
  • 6-cylinder
Power450 hp [335.6 kW]
Displacement1150 ci [18.8 L]
Rated RPM2100
Bore/Stroke6.25x6.25 inches [159 x 159 mm]
Starter typeElectric

Transmission Information of Big Bud, KT400

Transmission variants 1

TransmissionFuller Road Ranger
Gears13 forward and 2 reverse

Mechanical Specs of Big Bud, KT400

  • Cab standard.
Drive4x4 4WD
SteeringHydrostatic power

Power Information of Big Bud, KT400

Engine450 hp [335.6 kW]

Where it sits

With 450 HP, the Big Bud KT400 sits between 440 (440 HP) and 500 (500 HP) in Big Bud's range. Its power puts it in the 99th percentile of 1970s models in our database (1259 machines).

Frequently asked questions

How much horsepower does the Big Bud KT400 have?

The Big Bud KT400 delivers 450 HP.

What years was the Big Bud KT400 produced?

The Big Bud KT400 was produced in 1977-1978.

What engine does the Big Bud KT400 have?

The Big Bud KT400 is powered by a Turbocharged diesel, 6-cylinder engine.

What transmission does the Big Bud KT400 use?

The Big Bud KT400 uses a Fuller Road Ranger transmission.

How much does the Big Bud KT400 weigh?

The Big Bud KT400 weighs 40,000 lbs [18144 kg].

Is the Big Bud KT400 4WD?

The Big Bud KT400 is available in 4WD.

Compare the Big Bud KT400 with another model