Steiger Cougar II ST-300
Power
300 hp
Production
1974-1976
Engine
Turbocharged diesel, 6-cylinder
Transmission
Dana-Spicer ST-1010
Weight
22000 lbs [9979 kg]
Drive
4WD
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Introduction
Steiger Cougar II ST-300 Four-Wheel Drive Tractor
The Steiger Cougar II ST-300 is a heavy-duty four-wheel drive tractor manufactured in Fargo, North Dakota, USA, between 1974 and 1976. Designed for large-scale agricultural operations, this model belongs to the Steiger Cougar series, emphasizing high horsepower and traction capabilities.
Engine and Performance
The tractor is powered by a Caterpillar 3006T turbocharged diesel engine. This 6-cylinder liquid-cooled unit features a 10.5-liter displacement with a bore and stroke of 121 x 152 mm. It produces 300 horsepower at a rated 2200 RPM and generates 681 lb-ft (923.4 Nm) of torque at 1550 RPM, providing the consistent power required for heavy tillage and traction tasks.
Transmission and Drivetrain
The drivetrain utilizes a Dana-Spicer ST-1010 transmission, offering 10 forward gears and 2 reverse gears. The tractor features full four-wheel drive with articulated power steering for maneuverability in the field, supported by outboard planetary final drives and hydraulic disc brakes for reliable operation.
Hydraulics and Hitch
The hydraulic system is an open-center design with a pump flow capacity of 25 gpm (94.6 lpm) for implements and an additional 18 gpm (68.1 lpm) dedicated to steering. It is equipped with three valves to handle various hydraulic attachments. A Category III rear hitch is available as an option.
Dimensions and Operator Environment
With a wheelbase of 121.5 inches (308 cm) and an operating weight of 22,000 lbs (9,979 kg), the Cougar II ST-300 provides a stable platform for field work. The tractor comes standard with an enclosed cab, which could be outfitted with optional heating and air conditioning to maintain operator comfort during long field days.
Conclusion
The Steiger Cougar II ST-300 is a robust, high-performance tractor tailored for intensive agricultural demands. Its combination of a high-torque Caterpillar engine, articulated chassis, and heavy-duty drivetrain makes it an effective tool for farmers requiring significant drawbar pull and reliable performance in demanding conditions.
Production Information of Steiger, Cougar II ST-300
- Four-wheel Drive (4WD) tractor
- Built in Fargo, North Dakota, USA
| Manufacturer | Steiger |
|---|
Dimension and Tires Information of Steiger, Cougar II ST-300
| Wheelbase | 121.5 inches [308 cm] |
|---|---|
| Weight | 22000 lbs [9979 kg] |
| Height (cab) | 133.25 inches [338 cm] |
| Length | 244 inches [619 cm] |
| Width | 96 inches [243 cm] |
Width with 23.1-30 tires.
| Ag front | 23.1-30 |
|---|---|
| Ag rear | 23.1-30 |
Engine Specifications of Steiger, Cougar II ST-300
- Caterpillar 3006T
- Liquid-cooled horizontal-shaft inline
- Turbocharged diesel
- 6-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 638 ci [10.5 L] |
| Rated RPM | 2200 |
| Bore/Stroke | 4.75x6.00 inches [121 x 152 mm] |
| Coolant capacity | 60 qts [56.8 L] |
| Torque RPM | 1550 |
| Torque | 681 lb-ft [923.4 Nm] |
| Power | 300 hp [223.7 kW] |
Transmission Information of Steiger, Cougar II ST-300
Transmission variants 1
| Transmission | Dana-Spicer ST-1010 |
|---|---|
| Gears | 10 forward and 2 reverse |
Mechanical Specs of Steiger, Cougar II ST-300
- Four-wheel drive
- Cab standard with optional heat and air-conditioning.
- Hydraulic disc brakes
- Articulated power steering
| Final drives | Outboard planetary |
|---|
Power Information of Steiger, Cougar II ST-300
| Engine | 300 hp [223.7 kW] |
|---|---|
| Drawbar (claimed) | 227 hp [169.3 kW] |
Hydraulics Specifications of Steiger, Cougar II ST-300
| Type | Open center |
|---|---|
| Steering flow | 18 gpm [68.1 lpm] |
| Valves | 3 |
| Pump flow | 25 gpm [94.6 lpm] |
Three-Point Hitch of Steiger, Cougar II ST-300
| Rear Type(optional) | III |
|---|
Electrical System of Steiger, Cougar II ST-300
| Charging system | Alternator |
|---|---|
| Charging amps | 62 |
| Battery volts | 12 |
Where it sits
With 300 HP, the Steiger Cougar II ST-300 sits between Bearcat II ST-225 (210 HP) and Panther II ST-310 (310 HP) in Steiger's range. Its power puts it in the 96th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Steiger Cougar II ST-300 have?
The Steiger Cougar II ST-300 delivers 300 HP.
What years was the Steiger Cougar II ST-300 produced?
The Steiger Cougar II ST-300 was produced in 1974-1976.
What engine does the Steiger Cougar II ST-300 have?
The Steiger Cougar II ST-300 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the Steiger Cougar II ST-300 use?
The Steiger Cougar II ST-300 uses a Dana-Spicer ST-1010 transmission.
How much does the Steiger Cougar II ST-300 weigh?
The Steiger Cougar II ST-300 weighs 22000 lbs [9979 kg].
Is the Steiger Cougar II ST-300 4WD?
The Steiger Cougar II ST-300 is available in 4WD.