Big Bud 650/50
The Big Bud 650/50 is a tractor produced by Big Bud. It is equipped with a 1104 ci 18.1 L engine. The listed engine power is Diesel (listed): 650 hp / 484.7 kW. Transmission: Twin Disc TD-92-2610. Operating weight: 60000 lbs 27216 kg.
Engine Power
Diesel (listed): 650 hp / 484.7 kW
Fuel & Capacities
700 gal
2649.5 L
Transmission
Twin Disc TD-92-2610
Operating Weight
60000 lbs
27216 kg
Overview
 | 1980 - 1981
3 SeriesFour-wheel Drive (4WD) tractor
3 Series
Four-wheel Drive (4WD) tractor |
|---|
Production | |
|---|---|
Manufacturer | Big Bud |
Four-wheel Drive (4WD) tractor | |
Built in Havre, Montana, USA | |
Big Bud 650/50 Engine | |
|---|---|
Detroit Diesel 18.1L 12-cyl diesel | |
Engine details ...  |
Big Bud 650/50 Transmission | |
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9-speed power shift | |
Transmission details ...  |
Big Bud 650/50 Power | |
|---|---|
Engine | 650 hp
484.7 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Articulated power steering | |
Pneumatic disc brakes | |
Cruiser Cab standard with air-conditioning. |
Capacity | |
|---|---|
Fuel | 700 gal
2649.5 L |
Hydraulic system | 100 gal
378.5 L |
Hydraulics | |
|---|---|
Type | closed center |
Capacity | 100 gal
378.5 L |
Valves | 4 |
Pump flow | 36 gpm
136.3 lpm |
Steering flow | 36 gpm
136.3 lpm |
Dimensions & Tires | |
|---|---|
Wheelbase | 157 inches
398 cm |
Weight | 60000 lbs
27216 kg |
Front tire | 35.5-32 |
Rear tire | 35.5-32 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 75 |
Battery volts | 12 |
References | |
|---|---|
 | |
650/50 published in 1980, by Big Bud |
Engine
Engine Detail — 1104 ci / 18.1 L Diesel
Manufacturer | Detroit Diesel 12V92T |
Configuration | turbocharged diesel, 12-cylinder, liquid-cooled V-12 |
Displacement | 1104 ci
18.1 L |
Bore/Stroke | 4.84x5.00 inches
123 x 127 mm |
Power | 650 hp
484.7 kW |
Compression | 17:1 |
Rated RPM | 2100 |
Torque | 1915 lb-ft
2596.7 Nm |
Torque RPM | 1300 |
Starter | electric |
Starter volts | 24 |
Coolant capacity | 128 qts
121.1 L |
Transmission
Transmission — Twin Disc TD-92-2610
Transmission | Twin Disc TD-92-2610 |
Type | power shift |
Gears | 9 forward and 2 reverse |
With 35.5x32 dual tires. | |
 | |
Dimensions
Big Bud 650/50 Tires | |
|---|---|
Ag front | 35.5-32 |
Ag rear | 35.5-32 |
Dimensions | |
|---|---|
Wheelbase | 157 inches
398 cm |
Length | 264 inches
670 cm |
Width | 130 inches*Width over fenders.
330 cm |
Height (cab) | 154 inches
391 cm |
Shipping weight | 60000 lbs
27216 kg |
Max weight | 74000 lbs
33566 kg |
Ground clearance | 20.5 inches
52 cm |
Photos
Big Bud 650/50
Recommended Implements & Sizing Guide
Engineering recommendations for Big Bud 650/50 based on its 650 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁 | Commercial / Field Scale | High horsepower articulated/4WD field plowing. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙 | Commercial / Field Scale | Broad-acre grain tillage for high-drawbar tractors. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Big Bud 650/50.
Estimated Continuous Field Runtime: 20.7 hrs
Approximately 20.7 hours of continuous field operation at ~75% rated power on a full tank (700 gal / 2649.8 L).
Estimated 75% Load Fuel Burn~33.8 gal/hr (127.9 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Big Bud 650/50 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Big Bud 650/50.
Converted Equivalents:
Horsepower (HP)650 hp
Kilowatts (kW)484.7 kW
Metric Horsepower (PS / CV)659 PS
Direct Competitor Comparison
Compare Big Bud 650/50 against same-era industry alternatives in the same horsepower class.
Current Model
Big Bud
Big Bud 650/50
Engine Power:Diesel (listed): 650 hp / 484.7 kW
★ Baseline Reference
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