Skip to content
An independent tractor reference
TractorStack.

Find your tractor.

Menu ☰

Years in Production / 1987–1989

Big Bud

440

Explore the specifications, hardware, and original references for the Big Bud 440.

Generic tractor; no model photo available
No photo

440hp

Source index power

MFWD Optional

Drive

1987–1989

Production years

Big Bud

Manufacturer

440 / 01

At a glance

Production

Four-wheel Drive (4WD) tractor

Built in Havre, Montana, USA

Manufacturer
Big Bud
Total Built
2

Mechanical

Cab standard.

Drive
4x4 4WD
Steering
hydrostatic power

Electrical

Ground
negative

440 / 02

Under the hood

Engine Detail

Komatsu SA6 D140

turbocharged aftercooled diesel

6-cylinder

liquid-cooled

Displacement
930 ci15.2 L
Bore Stroke
5.51x6.50 inches140 x 165 mm
Power
440 hp328.1 kW
Rated Rpm
2100
Starter Type
electric
Cylinders
6
Cooling
liquid-cooled

440 / 03

Gears & controls

Transmission

Transmission Type
full power shift
Gears
12 forward and 2 reverse

440 / 04

Size. Stance. Footprint.

Dimensions And Tires

Weight
40,000 lbs18144 kg