Big Bud HN350
Power
350 hp
Production
1973-1978
Engine
Turbocharged intercooled diesel, 6-cylinder
Transmission
Fuller
Weight
40000 lbs [18144 kg]
Drive
4WD
Introduction
Big Bud HN350 Four-Wheel Drive Tractor
The Big Bud HN350 is a heavy-duty four-wheel drive tractor produced between 1973 and 1978 in Havre, Montana, USA. Designed for large-scale agricultural operations, this machine focuses on high-traction capabilities and sustained power output.
Engine and Powertrain
The tractor is powered by a Cummins NT855 six-cylinder, liquid-cooled, turbocharged, and intercooled diesel engine. With a displacement of 855 cubic inches (14.0 liters), it delivers a rated power of 350 hp (261.0 kW) at 2100 rated RPM. The engine utilizes an electric starter system and a bore/stroke ratio of 5.50x6.00 inches.
Transmission and Chassis
Power is managed through a Fuller gear-type transmission, providing 13 forward speeds and 2 reverse speeds. The tractor features a permanent four-wheel drive configuration, supported by hydrostatic power steering to assist in maneuvering the 40,000 lbs (18,144 kg) shipping weight. It is equipped with 24.5x32 agricultural tires on both the front and rear axles.
Hydraulic System
The hydraulic system is of the open-center type, designed to support heavy implements. It provides a total flow capacity of 40 gpm (151.4 lpm), with the steering circuit and the pump circuit each contributing 20 gpm (75.7 lpm) respectively.
Conclusion
With its significant mass, 350 horsepower rating, and four-wheel drive configuration, the Big Bud HN350 is suited for heavy-duty primary tillage and large-scale field operations requiring high drawbar pull.
Production Information of Big Bud, HN350
- Four-wheel Drive (4WD) tractor
- Built in Havre, Montana, USA
| Manufacturer | Big Bud |
|---|
Dimension and Tires Information of Big Bud, HN350
| Shipping weight | 40000 lbs [18144 kg] |
|---|
| Ag front | 24.5x32 |
|---|---|
| Ag rear | 24.5x32 |
Engine Specifications of Big Bud, HN350
- Cummins NT855
- Liquid-cooled
- Turbocharged intercooled diesel
- 6-cylinder
| Power | 350 hp [261.0 kW] |
|---|---|
| Displacement | 855 ci [14.0 L] |
| Rated RPM | 2100 |
| Bore/Stroke | 5.50x6.00 inches [140 x 152 mm] |
| Starter type | Electric |
Transmission Information of Big Bud, HN350
Transmission variants 1
| Transmission | Fuller |
|---|---|
| Type | Gear |
| Gears | 13 forward and 2 reverse |
Mechanical Specs of Big Bud, HN350
- Four-wheel drive
- Cab standard.
| Steering | Hydrostatic power |
|---|
Power Information of Big Bud, HN350
| Engine | 350 hp [261.0 kW] |
|---|
Hydraulics Specifications of Big Bud, HN350
| Type | Open center |
|---|---|
| Steering flow | 20 gpm [75.7 lpm] |
| Pump flow | 20 gpm [75.7 lpm] |
| Total flow | 40 gpm [151.4 lpm] |
Where it sits
With 350 HP, the Big Bud HN350 sits between HN320 (320 HP) and 360/10 (360 HP) in Big Bud's range. Its power puts it in the 98th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Big Bud HN350 have?
The Big Bud HN350 delivers 350 HP.
What years was the Big Bud HN350 produced?
The Big Bud HN350 was produced in 1973-1978.
What engine does the Big Bud HN350 have?
The Big Bud HN350 is powered by a Turbocharged intercooled diesel, 6-cylinder engine.
What transmission does the Big Bud HN350 use?
The Big Bud HN350 uses a Fuller transmission.
How much does the Big Bud HN350 weigh?
The Big Bud HN350 weighs 40000 lbs [18144 kg].
Is the Big Bud HN350 4WD?
The Big Bud HN350 is available in 4WD.