Tractor · 1979Unverified
Big Bud 525/50
Big Bud 525/50 — 3 Series · 525 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
525 hp
Max power
303.1 kW
Weight
45000 to 52000 pounds
Hover a source tag to verify
Overview
ManufacturerBig BudReference
Four-wheel Drive (4WD) tractorReference
Built in Havre, Montana, USAReference
Four-wheel driveReference
Final drivesplanetaryReference
Articulated power steeringReference
Pneumatic drum brakesReference
Cruiser Cab standard with air-conditioning.Reference
Variants
525/20gear shiftReference
525/50power shiftReference
Engine
Cummins 18.8L 6-cyl dieselReference
Engine391.5 kWReference
Drawbar (tested)303.1 kWReference
Cummins KTA-1150-CReference
turbocharged aftercooled dieselReference
6-cylinderReference
liquid-cooled inlineReference
Displacement18.8 LReference
Bore/Stroke159 x 159 mmReference
Power391.5 kWReference
Air cleanerdual dry elementReference
Rated RPM2100Reference
StarterelectricReference
Starter volts24Reference
Max power303.1 kWReference
Transmission
9-speed power shiftReference
6-speed power shiftReference
TransmissionTwin Disc TD-92-2610Reference
Typepower shiftReference
Gears9 forward and 2 reverseReference
TransmissionTwin Disc TD-92-2609Reference
Gears6 forward and 1 reverseReference
Capacities
Fuel2081.8 LReference
Max capacity27216 kgReference
PTO & Hydraulics
Hydraulic system136.3 LReference
Typeclosed centerReference
Capacity136.3 LReference
Steering flow136.3 lpmReference
Dimensions
Wheelbase381 cmReference
Weight45000 to 52000 poundsReference
Front tire30.5-32Reference
Rear tire30.5-32Reference
Ag front30.5-32Reference
Ag rear30.5-32Reference
Length679 cmReference
Width304 cmReference
Height (cab)367 cmReference
Height (exhaust)396 cmReference
Ground clearance36 cmReference
Shipping20412 kgReference
Operating23587 kgReference
Electrical
GroundnegativeReference
Charging systemalternatorReference
Charging amps75Reference
Battery volts12Reference
Test results
Diesel 9-speed 4WDJune 29 - July 9, 1981Link: Nebraska Tractor Test 1400 fileReference
Drawbar performanceReference
Fuel use103.3 l/hourReference
Max pull19149 kgReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.