Steiger Panther III ST-320
Power
320 hp
Production
1976-1977
Engine
Turbocharged diesel, 8-cylinder
Transmission
Spicer SST 1010-2A
Weight
34000 lbs [15422 kg]
Drive
4WD
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Introduction
Steiger Panther III ST-320: High-Power Four-Wheel Drive Tractor
The Steiger Panther III ST-320 is a heavy-duty four-wheel drive tractor produced between 1976 and 1977. Manufactured in Fargo, North Dakota, USA, this machine was engineered for large-scale agricultural operations requiring significant traction and power.
Engine and Performance
The tractor is powered by a Cummins VT903 engine, a liquid-cooled V8 turbocharged diesel unit. With a displacement of 903 cubic inches (14.8 liters), the engine produces 320 horsepower (238.6 kW) at a rated speed of 2600 RPM. It features a compression ratio of 15.5:1, designed for sustained heavy-load applications.
Transmission and Drivetrain
Power is delivered to the ground via a Spicer SST 1010-2A transmission, offering 20 forward gears and 4 reverse gears to suit various field speeds. The drivetrain utilizes a four-wheel drive system equipped with outboard planetary final drives to handle the high torque output. Steering is achieved through an articulated power steering system, allowing for maneuverability despite the tractor's size.
Hydraulics and Chassis
The hydraulic system utilizes an open-center design with 4 valves, providing the necessary flow for implements. The steering system operates at a pressure of 2100 psi (144.8 bar). The tractor is built on a 128-inch (325 cm) wheelbase with a ground clearance of 20 inches (50 cm), contributing to its stability and capability in uneven terrain. It features a Safari cab for operator environment.
Conclusion
With a base operating weight of 26,000 lbs (11,793 kg) and a maximum capacity of 34,000 lbs (15,422 kg), the Steiger Panther III ST-320 is configured for heavy draft work. It remains a notable example of mid-1970s high-horsepower North American agricultural engineering.
Production Information of Steiger, Panther III ST-320
- Original price was $60,500 in 1977
- Four-wheel Drive (4WD) tractor
- Built in Fargo, North Dakota, USA
| Manufacturer | Steiger |
|---|
Dimension and Tires Information of Steiger, Panther III ST-320
| Wheelbase | 128 inches [325 cm] |
|---|---|
| Ground clearance | 20 inches [50 cm] |
| Max weight | 34000 lbs [15422 kg] |
| Length | 252 inches [640 cm] |
| Weight | 26000 lbs [11793 kg] |
| Ag front | 24.5-32 |
|---|---|
| Ag front(optional) | 30.5-32 |
| Ag front(optional) | 23.1-34 |
| Ag front(optional) | 18.4-38 |
| Ag front(optional) | 23.1-34 |
| Ag front | 18.4-34 |
| Ag front(optional) | 18.4-38 |
| Ag rear | 18.4-34 |
| Ag rear(optional) | 20.8-34 |
| Ag rear | 24.5-32 |
| Ag rear(optional) | 23.1-30 |
| Ag rear(optional) | 30.5-32 |
| Ag rear(optional) | 20.8-38 |
| Ag rear(optional) | 23.1-30 |
| Ag rear(optional) | 20.8-38 |
| Ag rear(optional) | 20.8-34 |
Engine Specifications of Steiger, Panther III ST-320
- Cummins VT903
- Liquid-cooled V8
- Turbocharged diesel
- 8-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 903 ci [14.8 L] |
| Compression | 15.5:1 |
| Bore/Stroke | 5.50x4.75 inches [140 x 121 mm] |
| Starter | Electric |
| Rated RPM | 2600 |
| Power | 320 hp [238.6 kW] |
Transmission Information of Steiger, Panther III ST-320
Transmission variants 1
| Transmission | Spicer SST 1010-2A |
|---|---|
| Gears | 20 forward and 4 reverse |
Mechanical Specs of Steiger, Panther III ST-320
- Four-wheel drive
- Safari Cab
- Articulated power steering
| Final drives | Outboard planetary |
|---|
Power Information of Steiger, Panther III ST-320
- Https://www.tractordata.com/farm-tractors/001/0/1/1019-steiger-panther-iii-st-320-tests.html
Hydraulics Specifications of Steiger, Panther III ST-320
| Type | Open center |
|---|---|
| Valves | 4 |
| Steering press. | 2100 psi [144.8 bar] |
Three-Point Hitch of Steiger, Panther III ST-320
| Rear Type(optional) | III |
|---|
Electrical System of Steiger, Panther III ST-320
| Ground | Negative |
|---|---|
| Batteries | 2 |
| Battery volts | 12 |
Where it sits
Its power puts it in the 97th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Steiger Panther III ST-320 have?
The Steiger Panther III ST-320 delivers 320 HP.
What years was the Steiger Panther III ST-320 produced?
The Steiger Panther III ST-320 was produced in 1976-1977.
What engine does the Steiger Panther III ST-320 have?
The Steiger Panther III ST-320 is powered by a Turbocharged diesel, 8-cylinder engine.
What transmission does the Steiger Panther III ST-320 use?
The Steiger Panther III ST-320 uses a Spicer SST 1010-2A transmission.
How much does the Steiger Panther III ST-320 weigh?
The Steiger Panther III ST-320 weighs 34000 lbs [15422 kg].
Is the Steiger Panther III ST-320 4WD?
The Steiger Panther III ST-320 is available in 4WD.