| Manufacturer |
Steiger |
| Price |
50,000(USD) |
| Model |
Cougar III ST-250 |
| Equipment Type |
Four-wheel Drive 4WD Tractors |
| Factory |
Fargo, North Dakota, USA |
NEBRASKA TRACTOR TEST 1239
| Description |
2200rpm diesel 10-speed 4WD April 21 - May 2, 1977 Link: Nebraska Tractor Test 1239 file Drawbar performance Gear 6 used for power test Gear 2 used for pull test |
| Max power |
201.95hp / 150.6kW |
| Fuel use |
15.9gal/hour / 60.2l/hour |
| Max pull |
26,612lbs / 12071kg |
NEBRASKA TRACTOR TEST 1452
| Description |
2100rpm diesel 20-speed 4WD 9/21/1982 Link: Nebraska Tractor Test 1452 file Drawbar performance Gear 11 used for power test Gear 4 used for pull test |
| Max power |
214.51hp / 160.0kW |
| Fuel use |
13.4gal/hour / 50.7l/hour |
| Max pull |
29,539lbs / 13398kg |
STEIGER COUGAR III ST-250 POWER
| Engine |
250hp / 186.4kW |
| Drawbar (tested) |
214.51hp / 160.0kW |
ENGINE DETAIL
The Steiger Cougar III ST-250 is powered by a Caterpillar 3306DITA turbocharged diesel engine, providing robust performance with a 250 hp output and a high torque rating of 860 lb-ft at just 1300 RPM. Its 15:1 compression ratio enhances fuel efficiency and power delivery, while the significant coolant and oil capacities (56 quarts of coolant and 29 quarts of oil) support extended operating intervals, essential for high-demand agricultural tasks. A potential challenge includes the engine's weight and size, which may limit maneuverability in tighter farming environments.
| Description |
Caterpillar 3306DITA turbocharged aftercooled diesel 6-cylinder liquid-cooled inline |
| Displacement |
638ci / 10.5L |
| Bore/Stroke |
4.75x6.00inches / 121x 152 mm |
| Power |
250hp / 186.4kW |
| Air cleaner |
two paper elements |
| Compression |
15:1 |
| Rated RPM |
2100 |
| Torque |
860 lb-ft /1166.2 Nm |
| Torque RPM |
1300 |
| Starter volts |
12 |
| Oil capacity |
29qts / 27.4L |
| Coolant capacity |
56qts / 53.0L |
STEIGER COUGAR III ST-250 ENGINE
The Steiger Cougar III ST-250, powered by a robust Caterpillar 10.5L 6-cylinder diesel engine, delivers substantial horsepower for demanding agricultural tasks, offering excellent torque characteristics for heavy pull applications. Its large 267-gallon fuel tank ensures extended operational periods, reducing downtime for refueling during long hours in the field. However, operators should be mindful of its size and weight, which may impact maneuverability on smaller farms or uneven terrain.
| Description |
Caterpillar 10.5L 6-cyl diesel |
| Fuel tank |
267gal / 1010.6L |
TRANSMISSIONS OVERVIEW
The Steiger Cougar III ST-250 features a 10-speed transmission that can be configured for 20-speed operation, providing versatility in varying field conditions and optimizing fuel efficiency at differing load requirements. Its robust power output enhances performance in demanding agricultural tasks, though the complexity of the transmission may pose challenges in maintenance. Ideal for large-scale farming operations, it allows for smooth gear transitions that improve productivity on uneven terrain.
| Description |
10-speed/20-speed |
TRANSMISSION 1
The Steiger Cougar III ST-250 features a 10-speed forward and 2-speed reverse transmission, which enhances versatility in various field applications and allows for smooth operation across different terrains. The high number of forward gears aids in optimizing power transfer for both high-speed transport and low-speed fieldwork. However, the complexity of the transmission may require more maintenance and operator training to fully leverage its capabilities.
| Gears |
10 forward and 2 reverse |
TRANSMISSION 2
The Steiger Cougar III ST-250 features a Dana-Spicer 1010-2A ten-speed transmission, providing versatile gearing options with 20 forward and 4 reverse gears, ideal for various agricultural tasks. The 355.6mm hydraulic dry disc clutch ensures reliable power transfer, minimizing wear and maintenance needs. However, the complexity of the two-speed transfer case might pose challenges in operation for less experienced users, especially when navigating varying terrain.
| Transmission |
Dana-Spicer 1010-2A |
| Gears |
20 forward and 4 reverse |
| Clutch |
355.6mm hydraulic dry disc |
| Description |
Ten-speed transmission with two-speed transfer case. |
MECHANICAL
The Steiger Cougar III ST-250 features a robust 4x4 articulated chassis, providing superior maneuverability and traction in diverse terrains, ideal for heavy-duty agricultural applications. Its hydrostatic power steering enhances operator control and comfort, while the outboard planetary final drives offer improved durability and reduced wear on components. With a 10-speed/20-speed transmission, it provides efficient power management and adaptability for varying field conditions, though complexity may pose challenges in maintenance.
| Chassis |
4x4 articulated 4WD |
| Final drives |
outboard planetary |
| Steering |
hydrostatic power |
| Brakes |
hydraulic dry disc |
| Cab |
Safari Cab standard with heat and air-conditioning. |
| Transmissions |
10-speed/20-speed |
HYDRAULICS
| Type |
open center |
| Pressure |
2250psi / 155.1bar |
| Valves |
3 to 5 |
| Pump flow |
30.8gpm / 116.6lpm |
TRACTOR HITCH
STEIGER COUGAR III ST-250 TIRES
The Steiger Cougar III ST-250 features 23.1-34 tires both front and rear, which provide enhanced traction and stability for heavy-duty agricultural tasks. This tire configuration supports a high load capacity, making it ideal for plowing, tilling, or hauling heavy equipment. However, the relatively wide tire width may limit maneuverability in tight spaces and increase soil compaction on softer terrains.
| Ag front |
23.1-34 |
| Ag rear |
23.1-34 |
DIMENSIONS
| Wheelbase |
128inches / 325cm |
| Length |
252inches / 640cm |
| Width |
96inches / 243cm (tractor body) |
| Height (exhaust) |
155.8inches / 395cm |
| Shiping weight |
25,000lbs / 11340kg |
| Max weight |
34,000lbs / 15422kg |
DIMENSIONS & TIRES
The Steiger Cougar III ST-250 tractor features a substantial 128-inch wheelbase, providing enhanced stability for heavy-duty applications and rough terrain, a significant advantage when dealing with larger implements. Weighing 25,000 lbs offers better traction and reduces the risk of slipping in challenging field conditions, though it can limit mobility in soft ground. With 23.1-34 tires, the tractor is well-suited for pulling and tilling operations, but tire selection may need to be optimized based on specific soil and crop types for maximum efficiency.
| Wheelbase |
128inches / 325cm |
| Weight |
25,000lbs / 11340kg |
| Front tire |
23.1-34 |
| Rear tire |
23.1-34 |
ELECTRICAL
| Ground |
negative |
| Charging system |
alternator |
| Charging amps |
90 |
| Battery volts |
12 |
