Steiger Bearcat III ST-225

The Steiger Bearcat III ST-225 is a tractor produced by Steiger. It is equipped with a 638 ci 10.5 L engine. The listed engine power is Diesel (listed): 225 hp / 167.8 kW. Transmission: Dana-Spicer 1010-2A. Operating weight: 25000 lbs 11340 kg.

Engine Power

Diesel (listed): 225 hp / 167.8 kW

Fuel & Capacities

267 gal 1010.6 L

Transmission

Dana-Spicer 1010-2A

Operating Weight

25000 lbs 11340 kg

Overview

	1980 - 1983 III SeriesFour-wheel Drive (4WD) tractor III Series Four-wheel Drive (4WD) tractor

Production
Manufacturer	Steiger
Four-wheel Drive (4WD) tractor
Built in Fargo, North Dakota, USA
Original price was $66,000 in 1983

Variants
ST-225	fixed axle
PT-225	row-crop axle

Steiger Bearcat III ST-225 Engine
Caterpillar 10.5L 6-cyl diesel
Fuel tank	267 gal 1010.6 L
Engine details ...

Steiger Bearcat III ST-225 Transmission
20-speed
Transmission details ...

Steiger Bearcat III ST-225 Power
Engine	225 hp 167.8 kW
Drawbar (tested)	184.69 hp 137.7 kW
PTO (tested)	105.69 hp 78.8 kW
Performance test details ...

Mechanical
Four-wheel drive
Final drives	outboard planetary
Articulated power steering
Hydraulic dry disc brakes
Safari Cab standard with heat and air-conditioning.

Hydraulics
Type	open center
Pressure	2250 psi 155.1 bar
Valves	3 to 5
Pump flow	30.8 gpm 116.6 lpm

Tractor hitch
Rear Type	3 OptOptional

Dimensions & Tires
Wheelbase	128 inches 325 cm
Weight	25000 lbs 11340 kg
Front tire	23.1-34
Rear tire	23.1-34
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	90
Battery volts	12

References

ST Tractors published in 1981, by Steiger
ST Tractors published in 1982, by Steiger

Engine

Engine Detail — 638 ci / 10.5 L Diesel

Manufacturer	Caterpillar 3306DIT
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled inline
Displacement	638 ci 10.5 L
Bore/Stroke	4.75x6.00 inches 121 x 152 mm
Power	225 hp 167.8 kW
Compression	15:1
Rated RPM	2100
Torque	730 lb-ft 989.9 Nm
Torque RPM	1300
Starter volts	12
Oil capacity	29 qts 27.4 L
Coolant capacity	52 qts 49.2 L

Transmission

Transmission — Dana-Spicer 1010-2A

Transmission	Dana-Spicer 1010-2A
Gears	20 forward and 4 reverse
Clutch	355.6mm hydraulic dry disc
Ten-speed transmission with two-speed transfer case.

Dimensions

Steiger Bearcat III ST-225 Tires
Ag front	23.1-34
Ag rear	23.1-34

Dimensions
Wheelbase	128 inches 325 cm
Length	252 inches 640 cm
Width	96 inches (tractor body) 243 cm
Shipping weight	25000 lbs 11340 kg
Max weight	34000 lbs 15422 kg

Steiger Bearcat III ST-225 Height
Hood	94.8 inches 240 cm
Cab	134.8 inches 342 cm
Exhaust	155.8 inches 395 cm

Tests

Tractor Tests
NTTL 1272: diesel 20-speed 4WD
NTTL 1414: diesel 20-speed 4WD

Nebraska Tractor Test 1272
Diesel 20-speed 4WD April 18 - May 10, 1978 Link: Nebraska Tractor Test 1272 file
PTO performance
Power at rated engine speed	105.69 hp 78.8 kW
Fuel use	11.1 gal/hour 42.0 l/hour
Drawbar performance
Max power	172.37 hp 128.5 kW
Fuel use	14.3 gal/hour 54.1 l/hour
Gear 3LL used for power test.
Max pull	29 lbs 13 kg

Nebraska Tractor Test 1414
Diesel 20-speed 4WD October 19 - November 4, 1981 Link: Nebraska Tractor Test 1414 file
Drawbar performance
Max power	184.69 hp 137.7 kW
Fuel use	12.0 gal/hour 45.4 l/hour
Gear 11 used for power test.
Max pull	28,805 lbs 13065 kg
Gear 3 used for pull test.

Photos

Steiger Bearcat III ST-225

Recommended Implements & Sizing Guide

Engineering recommendations for Steiger Bearcat III ST-225 based on its 225 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁	Commercial / Field Scale	High horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙	Commercial / Field Scale	Broad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Steiger Bearcat III ST-225.

Estimated Continuous Field Runtime: 22.8 hrs

Approximately 22.8 hours of continuous field operation at ~75% rated power on a full tank (267 gal / 1010.7 L).

Estimated 75% Load Fuel Burn~11.7 gal/hr (44.3 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours