Steiger Cougar III ST-251

Name: Steiger Cougar III ST-251
Brand: Steiger

Power

250 hp

Production

1976-1982

Engine

Turbocharged diesel, 6-cylinder

Transmission

Spicer SST 1010

Weight

26610 lbs [12070 kg]

Drive

4WD

Over 200 HP 1970s 1980s

Introduction

Steiger Cougar III ST-251: The 250 HP Powerhouse You Need!

Prepare to be impressed by the Steiger Cougar III ST-251, a true titan of the agricultural world! Built to conquer the toughest tasks, this 1976-1982 model, originally priced at a hefty $75,000, combines brute strength with surprising agility. Let's dive into what makes this 4WD beast a legend in its own right.

Unleash the Cummins Power

At the heart of the Cougar III ST-251 beats a formidable Cummins NT-855C engine. This turbocharged diesel powerhouse delivers a massive 250 hp and a staggering 850 lb-ft of torque at 1400 RPM, ensuring that no job is too big or too demanding. With a displacement of 855 cubic inches and a robust liquid-cooling system, this engine is built for relentless performance.

Commanding Control and Comfort

Experience unmatched maneuverability thanks to the articulated power steering and four-wheel drive system. The standard Safari Cab isn't just a cabin; it's your command center, complete with heating and air conditioning to keep you comfortable no matter the weather or workload. Hydraulic disc brakes provide confident stopping power, essential for a machine of this caliber.

Hydraulic Muscle for Every Implement

This tractor means business with its open-center hydraulic system, boasting a generous 33-gallon capacity. The pump delivers a substantial 30.8 gpm flow at 2250 psi, ready to power a wide array of implements. With up to 4 valves available, the Cougar III ST-251 is as versatile as it is powerful.

Built to Endure: Dimensions and Drivetrain

Spanning an impressive 252 inches in length with a 128-inch wheelbase, this machine offers stability and presence. The drivetrain features outboard planetary final drives for durability, and you can choose between a 10-speed Spicer SST 1010 transmission or a more extensive 20-forward and 4-reverse option, ensuring the perfect gear for every situation. The standard tire setup of 23.1-34 on both front and rear axles highlights its readiness for fieldwork.

Conclusion

"The Steiger Cougar III ST-251 is more than just a tractor; it's a testament to robust engineering and agricultural prowess. If you're in the market for a reliable, high-horsepower machine that can handle the toughest jobs with ease, this 4WD legend from Steiger deserves your serious consideration. It's a true workhorse that continues to impress."

Introduction

Production Information of Steiger, Cougar III ST-251

The production information of the tractor (Cougar III ST-251) includes details about its manufacturing.

Original price was $75,000 in 1982

Four-wheel Drive (4WD) tractor

Built in Fargo, North Dakota, USA


Manufacturer	Steiger

Dimension and Tires Information of Steiger, Cougar III ST-251

This section sums up the dimension and tires information of the tractor.

Raba 598 rear axle


Front axle	Raba 598
Wheelbase	128 inches [325 cm]
Shipping weight	26610 lbs [12070 kg]
Height (exhaust)	155.8 inches [395 cm]
Length	252 inches [640 cm]
Max weight	34000 lbs [15422 kg]
Width	96 inches (tractor body) [243 cm]


Ag front	23.1-34
Ag rear	23.1-34

Engine Specifications of Steiger, Cougar III ST-251

Get the specifications for the engine and if different options are available.

Cummins NT-855C

Liquid-cooled

6-cylinder

Turbocharged diesel


Coolant capacity	56 qts [53.0 L]
Oil capacity	44 qts [41.6 L]
Compression	14.1:1
Torque	850 lb-ft [1152.6 Nm]
Idle RPM	830-2260
Displacement	855 ci [14.0 L]
Power	250 hp [186.4 kW]
Rated RPM	2100
Bore/Stroke	5.50x6.00 inches [140 x 152 mm]
Starter volts	12
Starter	Electric
Torque RPM	1400

Transmission Information of Steiger, Cougar III ST-251Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Transmission	Spicer SST 1010
Gears	10 forward and 2 reverse
Clutch	Hydraulic dry discs

Transmission variants 2

Ten-speed transmission with two-speed transfer case.


Gears	20 forward and 4 reverse
Clutch	394mm dry disc

10-speed

20-speed

Mechanical Specs of Steiger, Cougar III ST-251Y

This section summarizes all mechanical information such as the brake system and other specifications.

Four-wheel drive

Safari Cab standard with heat and air-conditioning.

Hydraulic disc brakes

Articulated power steering


Final drives	Outboard planetary

Power Information of Steiger, Cougar III ST-251Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.

Https://www.tractordata.com/farm-tractors/001/0/1/1015-steiger-cougar-iii-st-251-tests.html

Hydraulics Specifications of Steiger, Cougar III ST-251

Hydraulic system type, pressure, pump flow and valves.


Type	Open center
Pump flow	30.8 gpm [116.6 lpm]
Valves	4
Capacity	33 gal [124.9 L]
Pressure	2250 psi [155.1 bar]

Three-Point Hitch of Steiger, Cougar III ST-251

Hitch category and rear/front lift capacity.


Rear Type	III OptOptional

Electrical System of Steiger, Cougar III ST-251

Battery voltage, charging system and ground.


Battery Group	8D
Ground	Negative
Battery volts	12
Batteries	2
Charging system	Alternator
Battery AH	208
Charging amps	90

Frequently asked questions

How much horsepower does the Steiger Cougar III ST-251 have?

The Steiger Cougar III ST-251 delivers 250 HP.

What years was the Steiger Cougar III ST-251 produced?

The Steiger Cougar III ST-251 was produced in 1976-1982.

What engine does the Steiger Cougar III ST-251 have?

The Steiger Cougar III ST-251 is powered by a Turbocharged diesel, 6-cylinder engine.

What transmission does the Steiger Cougar III ST-251 use?

The Steiger Cougar III ST-251 uses a Spicer SST 1010 transmission.

How much does the Steiger Cougar III ST-251 weigh?

The Steiger Cougar III ST-251 weighs 26610 lbs [12070 kg].

Is the Steiger Cougar III ST-251 4WD?

The Steiger Cougar III ST-251 is available in 4WD.

More Steiger models

Cougar III PT-250250 HP · 1979 - 1980 Cougar III ST-250250 HP · 1976 - 1983 Cougar IV CM-250250 HP · 1983 - 1985 Cougar III PTA-251251 HP · 1981 2200238 HP · 1963 - 1969 Steiger #1238 HP · 1958 Bearcat 1000235 HP · 1986 Cougar III PT-270270 HP · 1977 - 1981

View all 81 Steiger models →

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