Case IH STX450QT Quadtrac

Production: 2002 - 2005  

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

Variants

wheeled tractor

crawler tractor

Case IH 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

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

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

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

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

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

Engine Detail
Cummins QSX15
turbocharged aftercooled diesel
6-cylinder
liquid-cooled
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

Dimensions
Wheelbase:	154 inches 391 cm
Width:	44 inches 111 cm (frame)
Front axle:	4.5 inch diameter 114 mm
Rear axle:	4.5 inch diameter 114 mm