Steiger Panther III ST-350 Tractor

Manufacturer Steiger
Price 94,700(USD)
Model Panther III ST-350
Equipment Type Four-wheel Drive 4WD Tractors
Factory Fargo, North Dakota, USA

STEIGER PANTHER III ST-350 POWER

Engine 350hp / 261.0kW
Drawbar (claimed) 311hp / 231.9kW

ENGINE DETAIL

The Steiger Panther III ST-350, powered by a Cummins VT-903 turbocharged diesel engine, offers a substantial power output of 350 hp at a rated RPM of 2600, alongside a high torque value of 848 lb-ft at 1800 RPM, ideal for heavy-duty field tasks. Its considerable displacement of 14.8L and a robust compression ratio of 15.5:1 enhance fuel efficiency and performance under heavy loads. However, the tractor's large oil and coolant capacities (38qts and 68qts respectively) highlight the need for diligent maintenance and monitoring to optimize engine longevity and prevent overheating during prolonged operations.

Description Cummins VT-903 turbocharged diesel 8-cylinder liquid-cooled
Displacement 903ci / 14.8L
Bore/Stroke 5.50x4.75inches / 140x 121 mm
Power 350hp / 261.0kW
Compression 15.5:1
Rated RPM 2600
Idle RPM 830-2860
Torque 848 lb-ft /1149.9 Nm
Torque RPM 1800
Starter volts 12
Oil capacity 38qts / 36.0L
Coolant capacity 68qts / 64.4L

STEIGER PANTHER III ST-350 ENGINE

The Steiger Panther III ST-350 features a robust Cummins 14.8L 8-cylinder diesel engine, providing substantial torque for demanding agricultural applications, making it ideal for heavy tillage and towing. A potential challenge includes managing its considerable weight and size in tight field conditions, which may affect maneuverability. However, the high horsepower and durability offer reliable performance for large-scale farming operations, particularly in challenging terrain.

Description Cummins 14.8L 8-cyl diesel

TRANSMISSIONS OVERVIEW

The Steiger Panther III ST-350 features a 10-speed transmission option or an advanced 20-speed Powershift, ensuring versatile power delivery and optimal torque management for varying soil conditions. Its robust engine output is paired with excellent fuel efficiency, making it suitable for extensive field operations. However, operators may face a learning curve with the advanced shifting capabilities, especially in demanding applications.

Description 10-speed/20-speed

TRANSMISSION 1

The Steiger Panther III ST-350 is equipped with a Spicer SST 1010 transmission, offering 10 forward and 2 reverse gears, which enhances operational versatility across diverse terrains. The hydraulic dry disc clutch provides smooth engagement and disengagement, although it may demand careful adjustment to prevent wear under heavy cyclic loads. This model is ideal for demanding agricultural applications where precise

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

TRANSMISSION 2

The Steiger Panther III ST-350 features a Spicer SST 1010 transmission with 20 forward and 4 reverse gears, providing versatility for various agricultural applications. The ten-speed transmission combined with a two-speed transfer case offers enhanced torque management for operations requiring both power and speed, suitable for heavy tillage or transport tasks. However, the substantial 394mm dry disc clutch may require meticulous maintenance to ensure optimal performance, particularly under heavy load scenarios.

Transmission Spicer SST 1010
Gears 20 forward and 4 reverse
Clutch 394mm dry disc
Description Ten-speed transmission with two-speed transfer case.

MECHANICAL

The Steiger Panther III ST-350 features a robust 4x4 articulated 4WD chassis, providing superior traction and maneuverability in challenging terrain. It is equipped with outboard planetary final drives for enhanced load-bearing capacity, and hydrostatic power steering for improved handling precision. With a 10-speed/20-speed transmission, operators can expect efficient power management, making it suitable for a variety of heavy-duty agricultural tasks.

Chassis 4x4 articulated 4WD
Final drives outboard planetary
Steering hydrostatic power
Brakes hydraulic disc
Cab Safari Cab standard with heat and air-conditioning.
Transmissions 10-speed/20-speed

CAPACITY

Fuel 267gal / 1010.6L
Hydraulic system 33gal / 124.9L

HYDRAULICS

Type open center
Capacity 33gal / 124.9L
Pressure 2250psi / 155.1bar
Valves 4
Pump flow 30.1gpm / 113.9lpm

TRACTOR HITCH

Rear Type 3

STEIGER PANTHER III ST-350 TIRES

The Steiger Panther III ST-350 features a robust Ag front and rear tire configuration of 20.8-34, which enhances traction and stability on challenging terrain, ideal for heavy tillage or large-scale farming operations. However, the large tire size could pose challenges in narrower fields or less responsive steering in tight maneuvers. This tractor is particularly beneficial for applications requiring high horsepower on rugged landscapes, maximizing both productivity and efficiency.

Ag front 20.8-34
Ag rear 20.8-34

DIMENSIONS

Wheelbase 128inches / 325cm
Length 252inches / 640cm
Width 96inches / 243cm (tractor body)
Height (exhaust) 155.8inches / 395cm
Shiping weight 26,700lbs / 12111kg
Max weight 34,000lbs / 15422kg
Front axle Raba 598
Rear axle Raba 598

DIMENSIONS & TIRES

The Steiger Panther III ST-350, with a 128-inch wheelbase and a weight of 26,700 lbs, offers excellent traction and stability, making it suitable for heavy-duty agricultural tasks. The 20.8-34 tires enhance ground contact and decrease soil compaction, which is beneficial for crop health in sensitive fields. However, its relatively high weight may limit maneuverability in tighter spaces, necessitating careful routing in confined farm areas.

Wheelbase 128inches / 325cm
Weight 26,700lbs / 12111kg
Front tire 20.8-34
Rear tire 20.8-34

PANTHER III ST-350 SERIAL NUMBERS

1977 139-00001
1978 139-00011
1979 139-00031
1980 139-00061
1981 139-00069

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 90
Batteries 2
Battery volts 12
Battery AH 208
Battery Group 8D


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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