Big Bud 400/20

Name: Big Bud 400/20
Brand: Big Bud

Power

400 hp

Production

1979-1981

Engine

Detroit Diesel 8V-92T, 8-cylinder

Transmission

Fuller Roadranger RT 12513

Weight

50000 lbs [22680 kg]

Drive

4WD

Over 200 HP 1970s 1980s

Introduction

Big Bud 400/20: Unleash Unrivaled Power on Your Farm!

Prepare to be amazed by the sheer might of the Big Bud 400/20, a true titan of the fields. This 1979-1981 legend, built in Havre, Montana, USA, is not just a tractor; it's a statement of raw power and enduring performance, designed to conquer the most demanding agricultural tasks with unwavering resolve. Get ready to experience farming on a whole new scale!

A Heart of Pure Power: The Detroit Diesel 8V-92T Engine

At the core of this beast lies the formidable Detroit Diesel 8V-92T engine. This turbocharged, liquid-cooled diesel powerhouse unleashes a staggering 400 horsepower (298.3 kW), ensuring that no task is too daunting. With a displacement of 736 cubic inches (12.1 L) and a robust 19:1 compression ratio, this engine is built for relentless performance and reliability, ready to tackle any challenge you throw its way.

Effortless Control: Transmission and Drivetrain Mastery

Navigate your fields with precision thanks to the exceptional Fuller Roadranger RT 12513 transmission. Offering a versatile 12 forward and 2 reverse gears, this mechanical marvel provides the perfect speed for every operation. Coupled with a robust four-wheel-drive system and articulated power steering, the Big Bud 400/20 offers unparalleled maneuverability and control, even in the most challenging terrains.

Built to Endure: Robust Construction and Dimensions

This tractor is a testament to durability, boasting a substantial 150-inch wheelbase and a total length of 267.6 inches (679 cm). Its impressive dimensions, including a maximum operating weight of 50,000 lbs (22,680 kg), provide exceptional stability and traction. The standard Cruiser Cab, complete with air conditioning, ensures operator comfort during long working days, making it a true workhorse designed for longevity.

Hydraulic Prowess for Demanding Implements

Equip yourself with the power to operate the most demanding implements. The closed-center load-sensing hydraulic system delivers a robust 36 gpm (136.3 lpm) pump flow, ensuring that your machinery operates at peak efficiency. With 4 valves and a dedicated 35 gpm (132.5 lpm) flow for steering, this tractor is engineered to handle complex hydraulic operations with ease.

Conclusion

"The Big Bud 400/20 is more than just a tractor; it's an icon of agricultural engineering. Its colossal power, robust construction, and thoughtful features make it an indispensable asset for farmers and contractors who demand the absolute best. If you're looking for a machine that combines brute strength with reliable performance, the Big Bud 400/20 stands ready to exceed your expectations."

Introduction

Production Information of Big Bud, 400/20

The production information of the tractor (400/20) includes details about its manufacturing.

Original price was $109,000 in 1978

Four-wheel Drive (4WD) tractor

Built in Havre, Montana, USA


Manufacturer	Big Bud

Dimension and Tires Information of Big Bud, 400/20

This section sums up the dimension and tires information of the tractor.


Max weight	50000 lbs [22680 kg]
Wheelbase	150 inches [381 cm]
Height (exhaust)	156 inches [396 cm]
Height (cab)	144.5 inches [367 cm]
Length	267.6 inches [679 cm]
Ground clearance	14.5 inches [36 cm]
Shipping weight	40000 lbs [18144 kg]
Width	120 inches [304 cm]


Ag front	24.5-32
Ag rear	30.5-32
Ag rear	24.5-32
Ag front	30.5-32

Engine Specifications of Big Bud, 400/20

Get the specifications for the engine and if different options are available.

Detroit Diesel 8V-92T

Liquid-cooled

Turbocharged diesel

8-cylinder


Starter volts	24
Displacement	736 ci [12.1 L]
Compression	19:1
Bore/Stroke	4.84x5.00 inches [123 x 127 mm]
Starter	Electric
Rated RPM	2100
Power	400 hp [298.3 kW]

Transmission Information of Big Bud, 400/20Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Transmission	Fuller Roadranger RT 12513
Type	Gear
Gears	12 forward and 2 reverse

Mechanical Specs of Big Bud, 400/20Y

This section summarizes all mechanical information such as the brake system and other specifications.

Four-wheel drive

Cruiser Cab standard with air-conditioning.

Pneumatic drum brakes

Articulated power steering


Final drives	Planetary

Power Information of Big Bud, 400/20Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Engine	400 hp [298.3 kW]

Hydraulics Specifications of Big Bud, 400/20

Hydraulic system type, pressure, pump flow and valves.


Type	Closed center load sensing
Steering flow	35 gpm [132.5 lpm]
Valves	4
Pump flow	36 gpm [136.3 lpm]

Electrical System of Big Bud, 400/20

Battery voltage, charging system and ground.


Ground	Negative
Battery volts	12
Charging system	Alternator
Charging amps	75

Frequently asked questions

How much horsepower does the Big Bud 400/20 have?

The Big Bud 400/20 delivers 400 HP.

What years was the Big Bud 400/20 produced?

The Big Bud 400/20 was produced in 1979-1981.

What engine does the Big Bud 400/20 have?

The Big Bud 400/20 is powered by a Detroit Diesel 8V-92T, 8-cylinder engine.

What transmission does the Big Bud 400/20 use?

The Big Bud 400/20 uses a Fuller Roadranger RT 12513 transmission.

How much does the Big Bud 400/20 weigh?

The Big Bud 400/20 weighs 50000 lbs [22680 kg].

Is the Big Bud 400/20 4WD?

The Big Bud 400/20 is available in 4WD.

More Big Bud models

400400 HP · 1986 - 1988 400/30400 HP · 1979 - 1981 402402 HP · 1986 - 1989 370370 HP · 1986 - 1989 360/10360 HP · 1979 - 1980 360/30360 HP · 1979 - 1981 440440 HP · 1987 - 1989 HN360360 HP · 1977 - 1978

View all 30 Big Bud models →

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