Steiger Panther III ST-350
Power
350 hp
Production
1977-1981
Engine
Turbocharged diesel, 8-cylinder
Transmission
Spicer SST 1010
Weight
26700 lbs [12111 kg]
Drive
4WD
Introduction
Steiger Panther III ST-350: Heavy-duty 4WD tractor
The Steiger Panther III ST-350 is a high-horsepower four-wheel drive tractor produced between 1977 and 1981 in Fargo, North Dakota. Designed for heavy-duty agricultural applications, this machine represents a significant era in large-scale tractor engineering.
Engine and Performance
The tractor is powered by a Cummins VT-903, an 8-cylinder, 14.8-liter turbocharged diesel engine. It delivers 350 hp (261.0 kW) at a rated speed of 2600 RPM. With a peak torque of 848 lb-ft (1149.9 Nm) reached at 1800 RPM, the engine provides the necessary lugging power for demanding tillage and traction tasks. The cooling system has a capacity of 64.4 liters, while the lubrication system holds 36.0 liters of oil.
Transmission and Drivetrain
The powertrain utilizes a Spicer SST 1010 transmission system. Operators can choose between two configurations: a 10-speed unit (10 forward and 2 reverse gears) or a 20-speed unit featuring a two-speed transfer case (20 forward and 4 reverse gears). Power is transmitted to all four wheels through outboard planetary final drives, controlled by an articulated power steering system for maneuverability in the field.
Hydraulics and Hitch
The open-center hydraulic system provides a pump flow of 30.1 gpm (113.9 lpm) at a pressure of 2250 psi (155.1 bar). The system includes four valves for implement control and a total hydraulic capacity of 33 gallons (124.9 L). A Category III rear hitch was available as an option to accommodate heavy implements.
Dimensions and Operator Environment
Built on a 128-inch (325 cm) wheelbase, the tractor has an overall length of 252 inches (640 cm). The shipping weight is 26,700 lbs (12,111 kg), with a maximum rated weight capacity of 34,000 lbs (15,422 kg). The operator is housed in the standard Safari Cab, which includes factory-fitted heating and air conditioning to maintain productivity during long field operations.
Conclusion
The Steiger Panther III ST-350 is a robust, high-capacity tractor engineered for large-acreage farming. Its combination of a high-torque Cummins engine, articulated steering, and flexible transmission options makes it suitable for heavy primary tillage and intensive draft work.
Production Information of Steiger, Panther III ST-350
- Original price was $94,700 in 1981
- Four-wheel Drive (4WD) tractor
- Built in Fargo, North Dakota, USA
| Manufacturer | Steiger |
|---|
Dimension and Tires Information of Steiger, Panther III ST-350
- Raba 598 rear axle
| Front axle | Raba 598 |
|---|---|
| Wheelbase | 128 inches [325 cm] |
| Shipping weight | 26700 lbs [12111 kg] |
| Height (exhaust) | 155.8 inches [395 cm] |
| Length | 252 inches [640 cm] |
| Max weight | 34000 lbs [15422 kg] |
| Width | 96 inches (tractor body) [243 cm] |
| Ag front | 20.8-34 |
|---|---|
| Ag rear | 20.8-34 |
Engine Specifications of Steiger, Panther III ST-350
- Cummins VT-903
- Liquid-cooled
- Turbocharged diesel
- 8-cylinder
| Coolant capacity | 68 qts [64.4 L] |
|---|---|
| Compression | 15.5:1 |
| Rated RPM | 2600 |
| Torque | 848 lb-ft [1149.9 Nm] |
| Idle RPM | 830-2860 |
| Displacement | 903 ci [14.8 L] |
| Power | 350 hp [261.0 kW] |
| Bore/Stroke | 5.50x4.75 inches [140 x 121 mm] |
| Oil capacity | 38 qts [36.0 L] |
| Starter volts | 12 |
| Torque RPM | 1800 |
Transmission Information of Steiger, Panther III ST-350
Transmission variants 1
| Transmission | Spicer SST 1010 |
|---|---|
| Gears | 10 forward and 2 reverse |
| Clutch | Hydraulic dry discs |
Transmission variants 2
- Ten-speed transmission with two-speed transfer case.
| Transmission | Spicer SST 1010 |
|---|---|
| Gears | 20 forward and 4 reverse |
| Clutch | 394mm dry disc |
- 10-speed
- 20-speed
Mechanical Specs of Steiger, Panther III ST-350
- Four-wheel drive
- Safari Cab standard with heat and air-conditioning.
- Hydraulic disc brakes
- Articulated power steering
| Final drives | Outboard planetary |
|---|
Power Information of Steiger, Panther III ST-350
| Engine | 350 hp [261.0 kW] |
|---|---|
| Drawbar (claimed) | 311 hp [231.9 kW] |
Hydraulics Specifications of Steiger, Panther III ST-350
| Type | Open center |
|---|---|
| Pump flow | 30.1 gpm [113.9 lpm] |
| Valves | 4 |
| Capacity | 33 gal [124.9 L] |
| Pressure | 2250 psi [155.1 bar] |
Three-Point Hitch of Steiger, Panther III ST-350
| Rear Type(optional) | III |
|---|
Electrical System of Steiger, Panther III ST-350
| Battery Group | 8D |
|---|---|
| Ground | Negative |
| Battery volts | 12 |
| Batteries | 2 |
| Charging system | Alternator |
| Battery AH | 208 |
| Charging amps | 90 |
Where it sits
With 350 HP, the Steiger Panther III ST-350 sits between Panther 1000 (335 HP) and Panther CP-1360 (360 HP) in Steiger'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 Steiger Panther III ST-350 have?
The Steiger Panther III ST-350 delivers 350 HP.
What years was the Steiger Panther III ST-350 produced?
The Steiger Panther III ST-350 was produced in 1977-1981.
What engine does the Steiger Panther III ST-350 have?
The Steiger Panther III ST-350 is powered by a Turbocharged diesel, 8-cylinder engine.
What transmission does the Steiger Panther III ST-350 use?
The Steiger Panther III ST-350 uses a Spicer SST 1010 transmission.
How much does the Steiger Panther III ST-350 weigh?
The Steiger Panther III ST-350 weighs 26700 lbs [12111 kg].
Is the Steiger Panther III ST-350 4WD?
The Steiger Panther III ST-350 is available in 4WD.