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Big Bud 525/50

The Big Bud 525/50 is a powerful four-wheel drive farm tractor produced by Big Bud from 1979 to 1982. It features a Cummins 18.8L 6-cylinder turbocharged aftercooled diesel engine delivering 525 hp (391.5 kW). The tractor offers power shift transmission options with 9-speed and 6-speed variants. It is equipped with planetary final drives, articulated power steering, pneumatic drum brakes, and a Cruiser Cab with air-conditioning. The tractor has a large fuel capacity of 550 gallons and a hydraulic system capacity of 36 gallons. Dimensions include a 150-inch wheelbase, 267.6-inch length, and a weight range of 45,000 to 52,000 pounds. Tires are sized 30.5-32 front and rear. Electrical system features a 12-volt battery with a 75-amp alternator. The Big Bud 525/50 is known for its robust construction and high performance in demanding agricultural tasks.
Big Bud 525/50Big Bud tractorsfarm tractor525 hp tractor4WD tractorCummins enginepower shift transmission
Power525 hp
Founded1979 - 1982
Model525/50

Technical Specifications

Detailed specifications and technical data for Big Bud 525/50

Power

Engine power:525 hp (391.5 kW)
Drawbar (tested):406.48 hp (303.1 kW)

Engine

Type:turbocharged aftercooled diesel
Model:Cummins KTA-1150-C
Power:525 hp (391.5 kW)
Cooling:liquid-cooled inline
Starter:electric
Cylinders:6-cylinder
Rated RPM:2100
Air cleaner:dual dry element
Bore/Stroke:6.25x6.25 inches (159 x 159 mm)
Displacement:1150 ci (18.8 L)
Starter volts:24

Weight

Shipping:45000 lbs (20412 kg)
Operating:52000 lbs (23587 kg)
Max capacity:60000 lbs (27216 kg)

Capacity

Fuel:550 gal (2081.8 L)
Hydraulic system:36 gal (136.3 L)

Variants

525/20:gear shift
525/50:power shift

Electrical

Ground:negative
Battery volts:12
Charging amps:75
Charging system:alternator

Hydraulics

Type:closed center
Capacity:36 gal (136.3 L)
Steering flow:36 gpm (136.3 lpm)

Mechanical

Cab:Cruiser Cab standard with air-conditioning
Drive:Four-wheel drive
Brakes:Pneumatic drum brakes
Steering:Articulated power steering
Final drives:planetary

Production

Series:3 Series
Built in:Havre, Montana, USA
Drive type:Four-wheel Drive (4WD) tractor
Years produced:1979 - 1982

References

Books:No Excuses published in 1980, by Big Bud; Size Us Up published in 1979, by Big Bud

Transmission

Type 1:power shift
Type 2:power shift
Gears 1:9 forward and 2 reverse
Gears 2:6 forward and 1 reverse
Options:9-speed power shift, 6-speed power shift
Transmission 1:Twin Disc TD-92-2610
Transmission 2:Twin Disc TD-92-2609

Dimensions & Tires

Width:120 inches (304 cm)
Length:267.6 inches (679 cm)
Weight:45000 to 52000 pounds
Rear tire:30.5-32
Wheelbase:150 inches (381 cm)
Front tire:30.5-32
Height (cab):144.5 inches (367 cm)
Ground clearance:14.5 inches (36 cm)
Height (exhaust):156 inches (396 cm)

Related Models

Big Bud 525/20

Model:525/20