CaseIH

CaseIH STX440

The CaseIH STX440 is a four-wheel drive (4WD) tractor introduced in 2001 as part of the Steiger STX Series. It is built in Fargo, North Dakota, USA. The tractor features a powerful Cummins QSX15 14.9L 6-cylinder turbocharged aftercooled diesel engine producing 440 hp (328.1 kW). It has a 16-speed full power shift transmission with electro-hydraulic wet disc clutch. The STX440 offers advanced mechanical features including compound planetary final drives, hydrostatic power steering, and integrated hydraulic wet disc brakes. The tractor is equipped with a Surveyor Cab as standard. Hydraulics include a closed center load sensing system with 4 to 7 rear valves and pump flow options of 40 gpm or 55 gpm. The rear hitch is type IVN with a lift capacity of 19500 lbs at 24 inches. The rear PTO is independent and optional with a 1000 rpm type. Dimensions include a 154 inch wheelbase and 44 inch frame width. Operating weight is 39325 lbs, ballasted weight 44560 lbs, and max capacity 52800 lbs. Tires are 20.8R42 front and rear. Electrical system features negative ground, alternator charging, two 12 volt batteries. The STX440 is related to the STX450 model produced from 2002 to 2005.
Power440 hp
Founded2001
ModelSTX440

Technical Specifications

Detailed specifications and technical data for CaseIH STX440

Power
Engine power440 hp (328.1 kW)
PTO (tested)454.23 hp (338.7 kW)
Drawbar (tested)371.35 hp (276.9 kW)
Tires
Ag rear20.8R42
Ag front20.8R42
Engine
Typeturbocharged aftercooled diesel
ModelCummins QSX15
Power440 hp (328.1 kW)
Torque1650 lb-ft (2237.4 Nm)
Coolingliquid-cooled
Cylinders6-cylinder
Fuel tank300 gal (1135.5 L)
Rated RPM2000
Torque RPM1400
Air cleanerdual paper elements
Bore/Stroke5.394x6.654 inches (137 x 169 mm)
Compression16.5:1
Displacement912 ci (14.9 L)
Starter volts12
Weight
Ballasted44560 lbs (20212 kg)
Operating39325 lbs (17837 kg)
Max capacity52800 lbs (23950 kg)
Dimensions
Width44 inches (frame) (111 cm)
Rear axle4.5 inch diameter (114 mm)
Wheelbase154 inches (391 cm)
Electrical
Groundnegative
Batteries2
Battery volts12
Charging systemalternator
Hydraulics
Typeclosed center load sensing
Pump flow40 gpm (151.4 lpm)
Rear valves4 to 7
Optional pump flow55 gpm (208.2 lpm)
Mechanical
CabSurveyor Cab standard
DriveFour-wheel drive
BrakesIntegrated hydraulic wet disc brakes
Steeringhydrostatic power
Final drivescompound planetary
Production
TypeFour-wheel Drive (4WD) tractor
Built inFargo, North Dakota, USA
ManufacturerCaseIH
Year introduced2001
Transmission
Typefull power shift
Gears16 forward and 2 reverse
Clutchelectro-hydraulic wet disc
Tractor hitch
Rear TypeIVN
Rear lift (at 24"/610mm)19500 lbs (8845 kg)
Power Take-off (PTO)
Rear PTOindependent (Optional)
Rear PTO Type1000