Big Bud

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.
Power525 hp
Founded1979 - 1982
Model525/50

Technical Specifications

Detailed specifications and technical data for Big Bud 525/50

Power
Engine power525 hp (391.5 kW)
Drawbar (tested)406.48 hp (303.1 kW)
Engine
Typeturbocharged aftercooled diesel
ModelCummins KTA-1150-C
Power525 hp (391.5 kW)
Coolingliquid-cooled inline
Starterelectric
Cylinders6-cylinder
Rated RPM2100
Air cleanerdual dry element
Bore/Stroke6.25x6.25 inches (159 x 159 mm)
Displacement1150 ci (18.8 L)
Starter volts24
Weight
Shipping45000 lbs (20412 kg)
Operating52000 lbs (23587 kg)
Max capacity60000 lbs (27216 kg)
Capacity
Fuel550 gal (2081.8 L)
Hydraulic system36 gal (136.3 L)
Variants
525/20gear shift
525/50power shift
Electrical
Groundnegative
Battery volts12
Charging amps75
Charging systemalternator
Hydraulics
Typeclosed center
Capacity36 gal (136.3 L)
Steering flow36 gpm (136.3 lpm)
Mechanical
CabCruiser Cab standard with air-conditioning
DriveFour-wheel drive
BrakesPneumatic drum brakes
SteeringArticulated power steering
Final drivesplanetary
Production
Series3 Series
Built inHavre, Montana, USA
Drive typeFour-wheel Drive (4WD) tractor
Years produced1979 - 1982
References
BooksNo Excuses published in 1980, by Big Bud; Size Us Up published in 1979, by Big Bud
Transmission
Type 1power shift
Type 2power shift
Gears 19 forward and 2 reverse
Gears 26 forward and 1 reverse
Options9-speed power shift, 6-speed power shift
Transmission 1Twin Disc TD-92-2610
Transmission 2Twin Disc TD-92-2609
Dimensions & Tires
Width120 inches (304 cm)
Length267.6 inches (679 cm)
Weight45000 to 52000 pounds
Rear tire30.5-32
Wheelbase150 inches (381 cm)
Front tire30.5-32
Height (cab)144.5 inches (367 cm)
Ground clearance14.5 inches (36 cm)
Height (exhaust)156 inches (396 cm)