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Big Bud 650/50 Specs ( 1980-1981 )

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Overview

The Big Bud 650/50 is a powerful 650 hp four-wheel drive farm tractor manufactured in Havre, Montana, between 1980 and 1981. This 12-cylinder Detroit Diesel machine features a 9-speed power shift transmission and a massive 700-gallon fuel capacity, making it a heavy-duty option for large-scale operations.

Ideal Applications

High-Output Field Work: With 650 hp and a 1104 ci turbocharged V-12 engine producing 1915 lb-ft of torque, this tractor is designed for demanding tasks requiring significant pulling power and mechanical strength.
Extended Operation: The 700-gallon fuel tank allows for long work intervals between refueling, supported by a comfortable standard Cruiser Cab equipped with air-conditioning for the operator.
Heavy Tillage and Towing: A maximum weight of 74,000 lbs combined with articulated power steering and four-wheel drive ensures stability and traction when handling heavy implements across large acreage.

Production

Description Built in Havre, Montana, USA
Drive type Four-wheel Drive (4WD) tractor
Manufacturer Big Bud

Engine

Engine type Detroit Diesel 18.1L 12-cyl diesel
Bore/Stroke 4.84x5.00 inches (123 x 127 mm)
Compression 17:1
Coolant capacity 128 qts (121.1 L)
Description Detroit Diesel 12V92T / turbocharged diesel / 12-cylinder / liquid-cooled V-12
Displacement 1104 ci (18.1 L)
Power 650 hp (484.7 kW)
Rated RPM 2100
Starter electric
Starter volts 24
Torque 1915 lb-ft (2596.7 Nm)
Torque RPM 1300

Transmission

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

Mechanical

Cab Cruiser Cab standard with air-conditioning.
Description Articulated power steering / Pneumatic disc brakes
Drive type Four-wheel drive

Capacity

Fuel 700 gal (2649.5 L)
Hydraulic system 100 gal (378.5 L)

Hydraulics

Capacity 100 gal (378.5 L)
Pump flow 36 gpm (136.3 lpm)
Steering flow 36 gpm (136.3 lpm)
Type closed center
Valves 4

Electrical

Battery volts 12
Charging amps 75
Charging system alternator
Ground negative

Dimensions & Tires

Ag front 35.5-32
Ag rear 35.5-32
Ground clearance 20.5 inches (52 cm)
Height (cab) 154 inches (391 cm)
Length 264 inches (670 cm)
Max weight 74000 lbs (33566 kg)
Shipping weight 60000 lbs (27216 kg)
Wheelbase 157 inches (398 cm)
Width 130 inches*Width over fenders. (330 cm)
Front tire 35.5-32
Rear tire 35.5-32
Weight 60000 lbs (27216 kg)
Wheelbase 157 inches (398 cm)

References

Description 650/50 published in 1980, by Big Bud

Speeds

Description With 35.5x32 dual tires.