Steiger Cougar III ST-251: all source data
All 68 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Steiger |
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| (no label) | Four-wheel Drive (4WD) tractor |
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| (no label) | Built in Fargo, North Dakota, USA |
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| (no label) | Original price was $75,000 in 1982 |
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Engine| (no label) | Cummins 14.0L 6-cyl diesel |
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Transmission| (no label) | 10-speed |
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| (no label) | 20-speed |
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Power| Engine | 250 hp | 186.4 kW |
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| Drawbar (claimed) | 206 hp | 153.6 kW |
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| Drawbar (tested) | 199.04 hp | 148.4 kW |
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Mechanical| (no label) | Four-wheel drive |
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| Final drives | outboard planetary |
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| (no label) | Articulated power steering |
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| (no label) | Hydraulic disc brakes |
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| (no label) | Safari Cab standard with heat and air-conditioning. |
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Capacity| Fuel | 267 gal | 1010.6 L |
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| Hydraulic system | 33 gal | 124.9 L |
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Hydraulics| Type | open center |
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| Capacity | 33 gal | 124.9 L |
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| Pressure | 2250 psi | 155.1 bar |
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| Valves | 4 |
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| Pump flow | 30.8 gpm | 116.6 lpm |
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Dimensions| Wheelbase | 128 inches | 325 cm |
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| Weight | 26610 lbs | 12070 kg |
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| Front tire | 23.1-34 |
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| Rear tire | 23.1-34 |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 90 |
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| Batteries | 2 |
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| Battery volts | 12 |
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| Battery AH | 208 |
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| Battery Group | 8D |
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Engine
Engine detail| (no label) | Cummins NT-855C |
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| (no label) | turbocharged diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 855 ci | 14.0 L |
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| Bore/Stroke | 5.50x6.00 inches | 140 x 152 mm |
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| Power | 250 hp | 186.4 kW |
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| Compression | 14.1:1 |
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| Rated RPM | 2100 |
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| Idle RPM | 830-2260 |
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| Torque | 850 lb-ft | 1152.6 Nm |
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| Torque RPM | 1400 |
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| Starter | electric |
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| Starter volts | 12 |
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| Oil capacity | 44 qts | 41.6 L |
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| Coolant capacity (Coolant) | 56 qts | 53.0 L |
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Transmission
Transmission options| (no label) | 10-speed |
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| (no label) | 20-speed |
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Transmission| Transmission | Spicer SST 1010 |
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| Gears | 10 forward and 2 reverse |
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| Clutch | hydraulic dry discs |
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| Gears | 20 forward and 4 reverse |
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| Clutch | 394mm dry disc |
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| (no label) | Ten-speed transmission with two-speed transfer case. |
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Dimensions
Tires| Ag front | 23.1-34 |
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| Ag rear | 23.1-34 |
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Dimensions| Wheelbase | 128 inches | 325 cm |
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| Length | 252 inches | 640 cm |
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| Width | 96 inches (tractor body) | 243 cm |
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| Height (exhaust) | 155.8 inches | 395 cm |
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| Shipping weight | 26610 lbs | 12070 kg |
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| Max weight (Max) | 34000 lbs | 15422 kg |
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| Front axle | Raba 598 |
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| (no label) | Raba 598 rear axle |
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