Steiger Bearcat IV KM-225

Last Updated: July 2024

Overview

The Steiger Bearcat IV KM-225 is a heavy-duty four-wheel drive articulated tractor designed for large-scale farming operations. It features a selective gear fixed ratio transmission with 20 forward and 4 reverse gears. Powered by a Cummins LT-10-A turbocharged diesel engine with a displacement of 611 cubic inches (10014 ml), it produces 225 horsepower within an RPM range of 1700 to 2100. The engine has a bore of 4.921 inches and a stroke of 5.254 inches. The tractor has a substantial operating weight of 33,830 lbs with ballast and is equipped with 18.4x38 inch tires. It has a Category III hitch and an open center hydraulic system. Additional features include a turning radius of 16 ft with brakes, multiple disc clutch, caliper disc brakes, and hydrostatic steering.
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Key Specifications

Category: Utility, Four-Wheel Drive

Power Output: 225

Transmission: selective gear fixed ratio

Drive Type: 4WD

Operating Weight: 33830 with ballast

Fuel Type: diesel

Image Gallery

Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor Steiger Bearcat IV KM-225 Tractor

Steiger Bearcat IV KM-225 vs. Similar Tractors

Power Output
Excellent
Greater than 93% of similar tractors.
Operating Weight
Above Average
Greater than 71% of similar tractors.

Technical Specifications

Engine

Manufacturer
Cummins
Model
LT-10-A
Cooling Type
liquid-cooled
Cylinder Orientation
inline
Valve Configuration
-
Fuel Type
diesel
Induction Type
turbocharged
Cylinders
6
Displacement (ci)
611 (10014 ml)
Bore (in)
4.921
Stroke (in)
5.254
Rated RPM
1700 to 2100
Power Output (hp)
225

Transmission

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

Dimensions

Length (in)
253.6
Width (in)
96
Height (in)
155.8 maximum (to the top of the exhaust)
Operating Weight (lb)
33830 with ballast

Power Take-Off (PTO)

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

Miscellaneous

Chassis
4x4 articulated 4WD
Drive Type
4WD
Steering Type
articulated power
Coolant Capacity (qts)
64
Front Tire Diameter (in)
38
Front Tire Width (in)
18.4
Rear Tire Diameter (in)
38
Rear Tire Width (in)
18.4
Front/Rear Rim Diameter (in)
-
Tire Type
-
Manufacture - End Year
-
Hitch Type
-
Hitch Category
III
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
-
Starter Type
-
Brake Type
-
Hydraulic System Type
direct engine drive

Test Results

Nebraska Tractor Test Laboratory - Test Date: October 10 to 23, 1984

Maximum Power and Fuel Consumption

  • Maximum Power at 2100 RPM (10th Gear): 188.03 HP (140.21 kW) with a drawbar pull of 13209 lbs (58.75 kN), speed of 5.34 mph (8.59 km/h), and a slip of 3.41%.
  • Fuel Consumption at Maximum Power: 11.444 Gal/hr (43.321 l/h) with a fuel efficiency of 0.424 lb/hp.hr (0.258 kg/kW.h) and a fuel efficiency of 16.43 Hp.hr/gal (3.237 kW.h/l).

Drawbar Performance

  • Drawbar Power at 1900 RPM (10th Gear): 199.69 HP (148.91 kW) with a drawbar pull of 15550 lbs (69.17 kN) and a speed of 4.82 mph (7.75 km/h).
  • Fuel Consumption at Drawbar Speed: 11.545 Gal/hr (43.701 l/h) with a fuel efficiency of 0.403 lb/hp.hr (0.245 kg/kW.h) and a fuel efficiency of 17.30 Hp.hr/gal (3.407 kW.h/l).

Torque and Engine Performance

  • Maximum Power in Selected Gears:
  • 3rd Gear: 170.97 HP (127.49 kW) with a drawbar pull of 31556 lbs (140.37 kN) and a speed of 2.03 mph (3.27 km/h).
  • 5th Gear: 186.35 HP (138.96 kW) with a drawbar pull of 24759 lbs (110.13 kN) and a speed of 2.82 mph (4.54 km/h).

Hydraulic Performance

  • Maximum Force Exerted: Not explicitly provided. Observed maximum pressure (remote): 2400 psi (16550 kPa).
  • Hydraulic Oil Temperature: 108°F (42°C) at hydraulic reservoir.
  • Lift Capacity for Transport: 6705 lbs (not specified by manufacturer for implement load capacity).

Overall Efficiency and Sound Levels

  • Sound Level with Cab at Maximum Available Power:
  • At 1700 RPM: 79.0 dB(A)
  • At 1900 RPM: 79.5 dB(A)
  • At 2100 RPM: 81.0 dB(A)



Nebraska Tractor Test Lab."Test 1542: Steiger Bearcat IV KM-225 Diesel 20-Speed" (1984). Nebraska Tractor Tests. 1853. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1853

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