Skip to content
An independent tractor reference
TractorStack.

Find your tractor.

Menu ☰

Years in Production / 1980–1981

Big Bud

650/50

Explore the specifications, hardware, and original references for the Big Bud 650/50.

Generic tractor; no model photo available
No photo

650hp

Source index power

4x4 Only

Drive

1980–1981

Production years

Big Bud

Manufacturer

650/50 / 01

At a glance

Production

Four-wheel Drive (4WD) tractor

Built in Havre, Montana, USA

Manufacturer
Big Bud

Capacity

Fuel
700 gal2649.5 L
Hydraulic System
100 gal378.5 L

Hydraulics

Type
closed center
Capacity
100 gal378.5 L
Valves
4
Pump Flow
36 gpm136.3 lpm
Steering Flow
36 gpm136.3 lpm

Electrical

Ground
negative
Charging System
alternator
Charging Amps
75
Battery Volts
12

Mechanical

Four-wheel drive

Articulated power steering

Pneumatic disc brakes

Cruiser Cab standard with air-conditioning.

650/50 / 02

Under the hood

Engine Detail

Detroit Diesel 12V92T

turbocharged diesel

12-cylinder

liquid-cooled V-12

Displacement
1104 ci18.1 L
Bore Stroke
4.84x5.00 inches123 x 127 mm
Power
650 hp484.7 kW
Compression Ratio
17:1
Rated Rpm
2100
Torque
1915 lb-ft2596.7 Nm
Torque Rpm
1300
Starter
electric
Starter Volts
24
Coolant Capacity
128 qts121.1 L
Cylinders
12
Cooling
liquid-cooled V-12

650/50 / 03

Gears & controls

Transmission

Transmission
Twin Disc TD-92-2610
Transmission Type
power shift
Gears
9 forward and 2 reverse

650/50 / 04

Size. Stance. Footprint.

Dimensions And Tires

Wheelbase
157 inches398 cm
Weight
60000 lbs27216 kg
Front Tire
35.5-32
Rear Tire
35.5-32

Tires And Tracks

Front Ag
35.5-32
Rear Ag
35.5-32