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Years in Production / 1976–1983
Steiger
Cougar III ST-250
Explore the specifications, hardware, and original references for the Steiger Cougar III ST-250.
250hp
Source index power
4x4 Only
Drive
1976–1983
Production years
Steiger
Manufacturer
Cougar III ST-250 / 01
At a glance
Production
Four-wheel Drive (4WD) tractor
Built in Fargo, North Dakota, USA
Original price was $50,000 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
- Pump Flow
- 30.8 gpm116.6 lpm
Hitch
- Rear Type
- III OptOptional
Electrical
- Ground
- negative
- Charging System
- alternator
- Charging Amps
- 90
- Battery Volts
- 12
Cougar III ST-250 / 02
Under the hood
Engine Detail
Caterpillar 3306DITA
turbocharged aftercooled diesel
6-cylinder
liquid-cooled inline
- Displacement
- 638 ci10.5 L
- Bore Stroke
- 4.75x6.00 inches121 x 152 mm
- Power
- 250 hp186.4 kW
- Air Cleaner
- two paper elements
- Compression Ratio
- 15:1
- Rated Rpm
- 2100
- Torque
- 860 lb-ft1166.2 Nm
- Torque Rpm
- 1300
- Starter
- electric
- Starter Volts
- 12
- Oil Capacity
- 29 qts27.4 L
- Coolant Capacity
- 56 qts53.0 L
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Options
Caterpillar 10.5L 6-cyl diesel
- Fuel Tank
- 267 gal1010.6 L
Cougar III ST-250 / 03
Gears & controls
Transmission (Option 1)
- Gears
- 10 forward and 2 reverse
Transmission (Option 2)
Ten-speed transmission with two-speed transfer case.
- Transmission
- Dana-Spicer 1010-2A
- Gears
- 20 forward and 4 reverse
- Clutch
- 355.6mm hydraulic dry disc
Cougar III ST-250 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 252 in640 cm
- Width
- 96 in243 cm
- Height
- 155.8 in395 cm
- Wheelbase
- 128 in325 cm
Dimensions And Tires
- Wheelbase
- 128 inches325 cm
- Weight
- 25000 lbs11340 kg
- Front Tire
- 23.1-34
- Rear Tire
- 23.1-34
Tires And Tracks
- Front Ag
- 23.1-34
- Rear Ag
- 23.1-34
Cougar III ST-250 / 05
Tests (NTTL)
Nebraska Tractor Test 1239
2200rpm diesel 10-speed 4WDApril 21 - May 2, 1977
Drawbar performance
Gear 6 used for power test.
Gear 2 used for pull test.
- Id
- 1239
- Max Power
- 201.95 hp150.6 kW
- Fuel Use
- 15.9 gal/hour60.2 l/hour
- Max Pull
- 26,612 lbs12071 kg
Nebraska Tractor Test 1452
2100rpm diesel 20-speed 4WD9/21/1982
Drawbar performance
Gear 11 used for power test.
Gear 4 used for pull test.
- Id
- 1452
- Max Power
- 214.51 hp160.0 kW
- Fuel Use
- 13.4 gal/hour50.7 l/hour
- Max Pull
- 29,539 lbs13398 kg