Steiger Panther III PT-350

Last Updated: July 2024

Overview

The Steiger Panther III PT-350 is a large, powerful, four-wheel drive tractor designed for heavy-duty agricultural work. Its robust 903 cubic inch, eight-cylinder Cummins engine is turbocharged, liquid-cooled, and boasts a maximum available power output of around 310.83 hp as per independent test results. The engine has a compression ratio of 15.5 to 1 and cooling system features two thermostats for temperature control. This tractor is suitable for a variety of demanding tasks on the farm. The articulated chassis with hydrostatic steering enhances maneuverability. It is equipped with a 20-speed selective gear fixed ratio transmission, with 20 forward gears and 4 reverse, complemented by a two dry plates hydraulically operated by foot pedal clutch. The tractor has a wheelbase of 132.5 inches, with rear and front tread widths of 79.0 inches and 136.4 inches. The drawbar height is 14.5 inches. Detailed drawbar performance, fuel consumption, and PTO performance data are available from independent test results. The tractor features four 23.1-34 tires with specific ballast configurations. It has a substantial operating weight of 31,145 pounds, denoting its heavy-duty status. With its powerful engine, robust transmission, and detailed performance data, the Panther III PT-350 is well-suited for intensive farm labor where power and durability are crucial.
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Key Specifications

Category: Utility, Four-Wheel Drive

Power Output: 310.83

Transmission: selective gear fixed ratio

Drive Type: 4WD

Operating Weight: 31145

Fuel Type: diesel

Steiger Panther III PT-350 vs. Similar Tractors

Power Output
Excellent
Greater than 95% of similar tractors.
Operating Weight
Above Average
Greater than 72% of similar tractors.

Technical Specifications

Engine

Manufacturer
Cummins
Model
VT903
Cooling Type
liquid-cooled
Cylinder Orientation
V-8
Valve Configuration
-
Fuel Type
diesel
Induction Type
turbocharged
Cylinders
8
Displacement (ci)
903
Bore (in)
5.5
Stroke (in)
4.75
Rated RPM
2600
Power Output (hp)
310.83

Transmission

Type
selective gear fixed ratio
Forward Gears
20
Reverse Gears
4
Total Gears
-

Dimensions

Length (in)
264.6
Width (in)
120.2
Height (in)
155.7
Operating Weight (lb)
31145

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
-
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
four-wheel drive with duals
Drive Type
4WD
Steering Type
hydrostatic and articulated
Coolant Capacity (qts)
60
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
-
Manufacture - End Year
-
Hitch Type
Category III*
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
-
Starter Type
12 volt
Brake Type
-
Hydraulic System Type
open center

Test Results

Nebraska Tractor Test Laboratory - Test Date: May 2-17, 1978 (Sound Retest: June 12-13, 1979)

Maximum Power and Fuel Consumption

  • Maximum Power: 105.86 HP (78.94 kW) at 2769 rpm
  • Fuel Consumption at Maximum Power: 11.386 Gal/hr (43.106 l/h) with a fuel efficiency of 0.744 lb/hp.hr (0.452 kg/kWh)

Drawbar Performance

  • Maximum Available Power at 10th Gear: 297.09 HP (221.54 kW) with a drawbar pull of 17,144 lbs (76.26 kN) and a speed of 6.50 mph (10.46 km/h)
  • Fuel Consumption: 0.460 lb/hp.hr (0.280 kg/kWh) with a fuel efficiency of 15.03 Hp.hr/gal (2.961 kWh/l)

Torque and Engine Performance

  • Maximum Torque: N/A in the provided document
  • Torque Rise: N/A in the provided document

Hydraulic Performance

  • Maximum Force Exerted: N/A in the provided document
  • Pump Delivery Rate: N/A in the provided document

Overall Efficiency

  • Fuel Efficiency: N/A in the provided document

    NTTL.(1978). Nebraska Tractor Test 1274: Steiger Panther III PT-350 With or Without PTO. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1593