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Years in Production / 1981–1983
Steiger
Cougar III ST-280
Explore the specifications, hardware, and original references for the Steiger Cougar III ST-280.
280hp
Source index power
4x4 Only
Drive
1981–1983
Production years
Steiger
Manufacturer
Cougar III ST-280 / 01
At a glance
Production
Four-wheel Drive (4WD) tractor
Built in Fargo, North Dakota, USA
Original price was $89,000 in 1983
- Manufacturer
- Steiger
Mechanical
Four-wheel drive
Articulated power steering
Hydraulic dry disc brakes
Safari Cab standard with heat and air-conditioning.
- Final Drives
- outboard planetary
Hydraulics
- Type
- open center
- Pressure
- 2250 psi155.1 bar
- Valves
- 3 to 5
- Cat Pump Flow
- 31.9 gpm120.7 lpm
- Cummins Pump Flow
- 28.6 gpm108.3 lpm
Hitch
- Rear Type
- III OptOptional
Electrical
- Ground
- negative
- Charging System
- alternator
- Charging Amps
- 90
- Battery Volts
- 12
Cougar III ST-280 / 02
Under the hood
Engine Detail (Option 1)
Cummins NT-855C
turbocharged diesel
6-cylinder
liquid-cooled inline
- Displacement
- 855 ci14.0 L
- Bore Stroke
- 5.50x6.00 inches140 x 152 mm
- Power
- 280 hp208.8 kW
- Air Cleaner
- two paper elements
- Compression Ratio
- 14.1:1
- Rated Rpm
- 2100
- Torque
- 920 lb-ft1247.5 Nm
- Torque Rpm
- 1400
- Starter Volts
- 12
- Oil Capacity
- 35 qts33.1 L
- Coolant Capacity
- 61 qts57.7 L
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Detail (Option 2)
Caterpillar 3406DIT
turbocharged diesel
6-cylinder
liquid-cooled inline
- Displacement
- 893 ci14.6 L
- Bore Stroke
- 5.40x6.50 inches137 x 165 mm
- Power
- 280 hp208.8 kW
- Air Cleaner
- two paper elements
- Rated Rpm
- 2100
- Torque
- 945 lb-ft1281.4 Nm
- Torque Rpm
- 1200
- Starter Volts
- 12
- Oil Capacity
- 36 qts34.1 L
- Coolant Capacity
- 70 qts66.2 L
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Options
Cummins 14.0L 6-cyl diesel
Caterpillar 14.6L 6-cyl diesel
- Fuel Tank
- 267 gal1010.6 L
Cougar III ST-280 / 03
Gears & controls
Transmission
Ten-speed transmission with two-speed transfer case.
- Transmission
- Dana-Spicer 1010
- Gears
- 20 forward and 4 reverse
- Clutch
- 393.7mm hydraulic dry disc
Cougar III ST-280 / 04
Size. Stance. Footprint.
Dimensions And Tires
- Wheelbase
- 128 inches325 cm
- Weight
- 25600 to 30500 pounds
- Front Tire
- 18.4x38
- Rear Tire
- 18.4x38
Tires And Tracks
- Front Ag
- 18.4x38
- Front Ag
- 20.8x34
- Front Ag
- 20.8x38
- Front Ag
- 23.1-34
- Front Ag
- 24.5x32
- Front Ag
- 30.5x32
- Rear Ag
- 18.4x38
- Rear Ag
- 20.8x34
- Rear Ag
- 20.8x38
- Rear Ag
- 23.1-34
- Rear Ag
- 24.5x32
- Rear Ag
- 30.5x32
Cougar III ST-280 / 05
Tests (NTTL)
Nebraska Tractor Test 1401
Cummins diesel 20-speed 4WDAugust 27 - September 9, 1981
Drawbar performance
Gear 12 used for power test.
Gear 1 used for pull test.
- Id
- 1401
- Max Power
- 249.69 hp186.2 kW
- Max Pull
- 31,517 lbs14296 kg
Nebraska Tractor Test 1412
Cat diesel 20-speed 4WDOctober 19 - 30, 1981
Drawbar performance
Gear 10 used for power test.
Gear 4 used for pull test.
- Id
- 1412
- Max Power
- 247.27 hp184.4 kW
- Fuel Use
- 15.1 gal/hour57.2 l/hour
- Max Pull
- 32,462 lbs14724 kg