CaseIH STX450

The CaseIH STX450 is a tractor produced by Caseih. It is equipped with a 912 ci 14.9 L engine. The rated power output is 450 hp 335.6 kW. Transmission: 16 forward and 2 reverse. Operating weight: 39325 lbs 17837 kg.

Overview

	2002 - 2005 Steiger STX SeriesFour-wheel Drive (4WD) tractor
2002 - 2005
Steiger STX Series
Four-wheel Drive (4WD) tractor

Production
Manufacturer	CaseIH
Four-wheel Drive (4WD) tractor
Built in Fargo, North Dakota, USA
The New Holland TJ450 is the same as the CaseIH STX450.

Variants
STX450	wheeled tractor
STX450QT	crawler tractor
TJ450	similar New Holland model

CaseIH STX450 Engine
Cummins 14.9L 6-cyl diesel
Fuel tank	300 gal 1135.5 L
Engine details ...

CaseIH STX450 Transmission
16-speed full power shift
Transmission details ...

CaseIH STX450 Power
Engine	450 hp 335.6 kW
Drawbar (claimed)	360 hp 268.5 kW
PTO (claimed)	395 hp 294.6 kW
Drawbar (tested)	371.35 hp 276.9 kW
PTO (tested)	454.23 hp 338.7 kW
Performance test details ...

Mechanical
Four-wheel drive
Final drives	compound planetary
Steering	hydrostatic power
Integrated hydraulic wet disc brakes
Surveyor Cab standard.

Hydraulics
Type	pressure flow compensated (PFC)
Rear valves	4 to 7
SCV flow	35 gpm 132.5 lpm
Total flow	40 gpm 151.4 lpm
	55 gpmOptOptional 208.2 lpm

Tractor hitch
Rear Type	IVN/III
Rear lift (at 24"/610mm)	19500 lbs 8845 kg

Power Take-off (PTO)
Rear PTO	independent OptOptional
Rear PTO Type	1000 (1.75)

Dimensions & Tires
Wheelbase	154 inches 391 cm
Weight	39325 lbs 17837 kg
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Battery volts	12

References
STX Series Steiger Tractors published in 2002, by CaseIH*
*Publication contains known errors.

Engine

Engine Detail — 912 ci / 14.9 L Diesel

Manufacturer	Cummins QSX 15
Configuration	turbocharged aftercooled diesel, 6-cylinder, liquid-cooled inline
Displacement	912 ci 14.9 L
Bore/Stroke	5.39x6.65 inches 137 x 169 mm
Power	450 hp 335.6 kW
Air cleaner	dual paper elements
Compression	16.5:1
Rated RPM	2000
Torque	1669 lb-ft 2263.2 Nm
Torque RPM	1400
Starter volts	12

CaseIH STX450 Engine

Transmission

Transmission — 16 forward and 2 reverse full power shift

Type	full power shift
Gears	16 forward and 2 reverse
Clutch	electro-hydraulic wet disc

Dimensions

CaseIH STX450 Tires

Dimensions
Wheelbase	154 inches 391 cm
Length	317.5 inches 806 cm
Width	44 inches (frame) 111 cm
Height	152.1 inches 386 cm
Front axle	4.5 inch diameter 114 mm
Rear axle	4.5 inch diameter 114 mm
Rear tread	60 to 176 inches 152 to 447 cm

CaseIH STX450 Weight
Operating	39325 lbs 17837 kg
Ballasted	44560 lbs 20212 kg
Max capacity	52000 lbs 23587 kg
Max Drawbar	5300 lbs 2404 kg
	11000 lbs*Drawbar at innermost position. 4989 kg

Tests

OCED Tractor Test 1784
Diesel 16-speed 4WD October 11, 2000 - October 19;2000, Link: OCED Tractor Test 1784 file
PTO performance
Max power	454.23 hp 338.7 kW
Fuel use	22.8 gal/hour 86.3 l/hour
Power at rated engine speed	400.64 hp 298.8 kW
Fuel use	22.1 gal/hour 83.6 l/hour
Drawbar performance
Max power	371.35 hp 276.9 kW
Fuel use	21.8 gal/hour 82.5 l/hour
Gear 4 used for power test.
Max pull	44,525 lbs 20196 kg
Gear 3 used for pull test.

Photos

CaseIH STX450

CaseIH STX450