Big Bud 525/50

Big Bud 525/50 Four-wheel Drive (4WD) tractor Technical Specifications

Big Bud 525/50 is a Row-Crop tractor that was produced by the John Deere between 1979 – 1982.

Below you will find detailed technical specifications for Big Bud 525/50 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

Big Bud 525/50 Production

Manufacturer: Big Bud
Type: Four-wheel Drive (4WD) tractor
Factory: Havre, Montana, USA

Big Bud 525/50 Power

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

Big Bud 525/50 Electrical

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

Big Bud 525/50 Mechanical

Chassis: 4×4 articulated 4WD
Final drives: planetary
Steering: articulated power
Brakes: pneumatic drum
Cab: Cruiser Cab standard with air-conditioning.
Transmissions: 9-speed power shift
  6-speed power shift


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


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

Big Bud 525/50 Engine detail

Engine Detail
Cummins KTA-1150-C
turbocharged aftercooled diesel
liquid-cooled inline
Displacement: 1150 ci
18.8 L
Bore/Stroke: 6.25×6.25 inches
159 x 159 mm
Power: 525 hp
391.5 kW
Air cleaner: dual dry element
Rated RPM: 2100
Starter: electric
Starter volts: 24

Big Bud 525/50 Transmission overview

Engine Oil

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

Big Bud 525/50 Dimensions

Wheelbase: 150 inches
381 cm
Length: 267.6 inches
679 cm
Width: 120 inches
304 cm
Height (cab): 144.5 inches
367 cm
Height (exhaust): 156 inches
396 cm
Ground clearance: 14.5 inches
36 cm

Big Bud 525/50 Weight
Shipping: 45000 lbs
20412 kg
Operating: 52000 lbs
23587 kg
Max capacity: 60000 lbs
27216 kg

Big Bud 525/50 Tests

Nebraska Tractor Test 1400
Diesel 9-speed 4WD
June 29 – July 9, 1981
Link: Nebraska Tractor Test 1400 file
Drawbar performance
Max power: 406.48 hp
303.1 kW
Fuel use: 27.3 gal/hour
103.3 l/hour
Max pull: 42216 lbs
19149 kg


Is Big Bud 525/50 a good tractor?

The Big Bud 525/50 is one of the great tractors in the Big Bud stable, and it has earned Big Bud a fantastic reputation.

How much oil does a Big Bud 525/50 take?

Check out the Big Bud 525/50 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Big Bud made the ?

The Big Bud 525/50 was an agricultural tractor model made from 1979 – 1982

Leave a Comment