CaseIH STX440QT tractor specifications

2001

2001 Steiger STX SeriesArticulated Crawler tractor

Series:

Series:STX440QT QuadtracSTX450QT ↓

2002 - 2005

Steiger STX Series

Articulated Crawler tractor

Production

Production
Manufacturer:	CaseIH
Type:	Articulated Crawler tractor
Factory:	Fargo, North Dakota, USA

Variants

Variants
STX450:	wheeled tractor
STX450QT:	crawler tractor

CaseIH STX450QT Power

CaseIH STX450QT Power
Engine:	450 hp 335.6 kW
PTO (claimed):	395 hp 294.6 kW
Drawbar (tested):	345.68 hp 257.8 kW
PTO (tested):	450.29 hp 335.8 kW
power test details ...

CaseIH STX450QT Engine

CaseIH STX450QT Engine
Cummins 14.9L 6-cyl diesel
Fuel tank:	300 gal 1135.5 L
Engine details ...

Mechanical

Mechanical
Chassis:	articulated crawler
Final drives:	inboard planetary
Steering:	hydrostatic power
Brakes:	integrated hydraulic wet disc
Cab:	Surveyor Cab standard.
Transmission:	16-speed full power shift
Transmission details ...

Hydraulics

Hydraulics
Type:	pressure flow compensated (PFC)
Pump flow:	40 gpm 151.4 lpm
	55 gpm 208.2 lpm *Optional

Tractor hitch

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

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent*Optional
Rear RPM:	1000 (1.75)
Engine RPM:	1000@1998

Dimensions & Tracks

Dimensions & Tracks
Wheelbase:	154 inches 391 cm
Weight:	51335 lbs 23285 kg
30-inch tracks
Full dimensions and tracks ...

Electrical

Electrical
Ground:	negative
Charging system:	alternator
Battery volts:	12

Production

Production Manufacturer:CaseIH
Type:Articulated Crawler tractor
Factory:Fargo, North Dakota, USA

CaseIH STX440QT Power

CaseIH STX440QT Power Engine:440 hp
328.1 kW
Drawbar (tested):345.68 hp
257.8 kW
PTO (tested):450.29 hp
335.8 kW
power test details ...

2001

Steiger STX Series

Articulated Crawler tractor

Series:

Series:	STX440QT Quadtrac
	STX450QT ↓

OCED Tractor Test 1785

OCED Tractor Test 1785
Diesel 16-speed Crawler October 4 - 19, 2000 Link: OCED Tractor Test 1785 file
PTO performance
Max power:	450.29 hp 335.8 kW
Fuel use:	22.3 gal/hour 84.4 l/hour
Power at rated engine speed:	399.14 hp 297.6 kW
Fuel use:	22.0 gal/hour 83.3 l/hour
Drawbar performance
Max power:	345.68 hp 257.8 kW
Fuel use:	22.1 gal/hour 83.6 l/hour
Gear 4 used for power test.

CaseIH STX440QT Engine

CaseIH STX440QT Engine Cummins 14.9L 6-cyl diesel Fuel tank:300 gal
1135.5 L
Engine details ...

2001

Steiger STX Series

Articulated Crawler tractor

Series:

Series:	STX440QT Quadtrac
	STX450QT ↓

Engine Detail

Engine Detail
Cummins QSX15
turbocharged aftercooled diesel
6-cylinder
liquid-cooled
Displacement:	912 ci 14.9 L
Bore/Stroke:	5.394x6.654 inches 137 x 169 mm
Power:	440 hp 328.1 kW
Air cleaner:	dual paper elements
Compression:	16.5:1
Rated RPM:	2000
Torque:	1650 lb-ft 2237.4 Nm
Torque RPM:	1400
Starter volts:	12

Mechanical

Mechanical Chassis:articulated crawler
Final drives:inboard planetary
Steering:hydrostatic power
Brakes:integrated hydraulic wet disc
Cab:Surveyor Cab standard.
Transmission:16-speed full power shift
Transmission details ...