Steiger Panther III ST-320

The Steiger Panther III ST-320 is a tractor produced by Steiger. It is equipped with a 903 ci 14.8 L engine. The rated power output is 320 hp 238.6 kW. Transmission: Spicer SST 1010-2A. Operating weight: 26000 lbs 11793 kg.

Overview

	1976 - 1977 III SeriesFour-wheel Drive (4WD) tractor
1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

Production
Manufacturer	Steiger
Four-wheel Drive (4WD) tractor
Built in Fargo, North Dakota, USA
Original price was $60,500 in 1977

Steiger Panther III ST-320 Engine
Cummins 14.8L 8-cyl diesel
Fuel tank	267 gal 1010.6 L
Engine details ...

Steiger Panther III ST-320 Transmission
20-speed
Transmission details ...

Steiger Panther III ST-320 Power
Engine	320 hp 238.6 kW
Drawbar (claimed)	270 hp 201.3 kW
Drawbar (tested)	262.13 hp 195.5 kW
Performance test details ...

Mechanical
Four-wheel drive
Final drives	outboard planetary
Articulated power steering
Safari Cab

Photos
Steiger Panther III ST-320 photos...

Hydraulics
Type	open center
Valves	4
Steering press.	2100 psi 144.8 bar

Tractor hitch
Rear Type	III OptOptional

Dimensions & Tires
Wheelbase	128 inches 325 cm
Weight	26000 lbs 11793 kg
Front tire	24.5-32
Rear tire	24.5-32
Full dimensions and tires ...

Panther III ST-320 Serial Numbers
1976	108-00001
1977	108-00187
FAQ: How to read a serial number table.

Electrical
Ground	negative
Batteries	2
Battery volts	12

References
Operator's Manual Panther III (37-049) published in 1974
Series III published in 1976, by Steiger

Engine

	1976 - 1977 III SeriesFour-wheel Drive (4WD) tractor
1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

Engine Detail
Cummins VT903
turbocharged diesel
8-cylinder
liquid-cooled V8
Displacement	903 ci 14.8 L
Bore/Stroke	5.50x4.75 inches 140 x 121 mm
Power	320 hp 238.6 kW
Compression	15.5:1
Rated RPM	2600
Starter	electric
Starter volts	12

Transmission

	1976 - 1977 III SeriesFour-wheel Drive (4WD) tractor
1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

Transmission
Transmission	Spicer SST 1010-2A
Gears	20 forward and 4 reverse

Shift Pattern

Dimensions

	1976 - 1977 III SeriesFour-wheel Drive (4WD) tractor
1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

Steiger Panther III ST-320 Tires
Ag front	24.5-32
Ag rear	24.5-32
Ag front	18.4-34
	18.4-38
	20.8-34
	20.8-38
	23.1-30
	23.1-34
	30.5-32
Ag rear	18.4-34
	18.4-38
	20.8-34
	20.8-38
	23.1-30
	23.1-34
	30.5-32

Dimensions
Wheelbase	128 inches 325 cm
Length	252 inches 640 cm
Weight	26000 lbs 11793 kg
Max weight	34000 lbs 15422 kg
Ground clearance	20 inches 50 cm

Steiger Panther III ST-320 Height
Hood	95 inches 241 cm
Cab	135 inches 342 cm
Exhaust	156 inches 396 cm

Tests

	1976 - 1977 III SeriesFour-wheel Drive (4WD) tractor
1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

1976 - 1977
III Series
Four-wheel Drive (4WD) tractor

Nebraska Tractor Test 1169
Diesel 10-speed 4WD November 15 - 26, 1974 Link: Nebraska Tractor Test 1169 file
Drawbar performance
Max power	262.13 hp 195.5 kW
Fuel use	18.9 gal/hour 71.5 l/hour
Gear 3-Hi used for power test.
Max pull	28097 lbs 12744 kg
Gear 2-Lo used for pull test.

Photos

Steiger Panther III ST-320