Production
| Description | Built in Fargo, North Dakota, USA / Original price was $78,000 in 1981 |
|---|---|
| Drive type | Four-wheel Drive (4WD) tractor |
| Manufacturer | Steiger |
Engine
| Engine type | Caterpillar 10.5L 6-cyl diesel |
|---|---|
| Fuel tank | 267 gal (1010.6 L) |
| Bore/Stroke | 4.75x6.00 inches (121 x 152 mm) |
| Compression | 17.5:1 |
| Coolant capacity | 56 qts (53.0 L) |
| Description | Caterpillar 3306 / turbocharged aftercooled diesel / 6-cylinder / liquid-cooled |
| Displacement | 638 ci (10.5 L) |
| Idle RPM | 830-2470 |
| Oil capacity | 29 qts (27.4 L) |
| Power | 270 hp (201.3 kW) |
| Rated RPM | 2200 |
| Starter | electric |
| Starter volts | 12 |
| Torque | 775 lb-ft (1050.9 Nm) |
| Torque RPM | 1400 |
| Drawbar (tested) | 218.74 hp (163.1 kW) |
Transmission
| Clutch | hydraulic dry discs / 356mm dry disc |
|---|---|
| Description | Ten-speed transmission with two-speed transfer case. |
| Gears | 10 forward and 2 reverse / 20 forward and 4 reverse |
| Transmission | Dana-Spicer 1010-3B |
| Transmission type | 10-speed / 20-speed |
| Transmission type | 10-speed / 20-speed |
Mechanical
| Cab | Safari Cab standard with heat and air-conditioning. |
|---|---|
| Description | Articulated power steering / Hydraulic disc brakes |
| Drive type | Four-wheel drive |
| Final drives | outboard planetary |
Hydraulics
| Pressure | 2250 psi (155.1 bar) |
|---|---|
| Pump flow | 29.2 gpm (110.5 lpm) |
| Type | open center |
| Valves | 4 |
Hitch
| Rear Type | III OptOptional |
|---|
Electrical
| Batteries | 2 |
|---|---|
| Battery AH | 208 |
| Battery Group | 8D |
| Battery volts | 12 |
| Charging amps | 90 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Clearance (rear axle) | 20 inches (50 cm) |
|---|---|
| Description | Raba 598 rear axle |
| Front axle | Raba 598 |
| Height (exhaust) | 155.8 inches (395 cm) |
| Length | 252 inches (640 cm) |
| Max weight | 34000 lbs (15422 kg) |
| Shipping weight | 26250 lbs (11907 kg) |
| Wheelbase | 128 inches (325 cm) |
| Width | 96 inches (tractor body) (243 cm) |
| Front tire | 20.8-38 |
| Rear tire | 20.8-38 |
| Weight | 26250 lbs (11907 kg) |
| Wheelbase | 128 inches (325 cm) |
| Ag front | 20.8-38 / 18.4-30 |
| Ag rear | 20.8-38 / 18.4-30 |
Cougar III ST-270 Serial Numbers
| 1977 | 105-00330 |
|---|---|
| 1978 | 105-00477 |
| 1979 | 105-00658 |
| 1980 | 105-00872 |
| 1981 | 105-0100 |
| Description | FAQ: How to read a serial number table. |
Nebraska Tractor Test 1238
| Description | Diesel 10-speed 4WDApril 18 - May 2, 1977Link: Nebraska Tractor Test 1238 file / Drawbar performance / Gear 6 used for power test. / Gear 3 used for pull test. |
|---|---|
| Fuel use | 16.4 gal/hour (62.1 l/hour) |
| Max power | 218.74 hp (163.1 kW) |
| Max pull | 25371 lbs (11508 kg) |
References
| Description | ST Tractors - Caterpillar Powered Series III Cougar ST 270 and Panther ST 325 published in 1979, by Steiger / Series III published in 1976, by Steiger |
|---|