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CaseIH STX425

The CaseIH STX425 is a four-wheel drive (4WD) tractor produced from 2002 to 2006 as part of the Steiger STX Series. It features a powerful Cummins QSX 15 turbocharged aftercooled diesel engine with 425 hp, advanced transmission options including 16-speed full power shift and 24-speed fully synchronized Synchroshift, and robust mechanical and hydraulic systems. Built in Fargo, North Dakota, USA, the STX425 is designed for heavy-duty farming applications with a maximum capacity of 51000 lbs and a variety of features such as hydrostatic power steering, integrated hydraulic wet disc brakes, and a Surveyor Cab. It offers optional features like an independent rear PTO and high flow hydraulics, making it a versatile and reliable tractor in its class.
CaseIHSTX425tractorspecificationsenginetransmissiondimensionshydraulicsfarm tractor
Power425 hp
Founded2002 - 2006
ModelSTX425

Technical Specifications

Detailed specifications and technical data for CaseIH STX425

Power

Engine:425 hp (316.9 kW)
PTO (claimed):370 hp (275.9 kW)
Drawbar (claimed):345 hp (257.3 kW)

Engine

Note:When equipped with the manual transmission the STX425 engine is limited to 1501 lb-ft of torque.
Type:turbocharged aftercooled diesel
Model:Cummins QSX 15
Power:425 hp (316.9 kW)
Torque:1594 lb-ft (2161.5 Nm)
Cooling:liquid-cooled inline
Cylinders:6-cylinder
Rated RPM:2000
Torque RPM:1400
Air cleaner:dual paper elements
Bore/Stroke:5.39x6.65 inches (137 x 169 mm)
Displacement:912 ci (14.9 L)
Starter volts:12

Weight

Max Drawbar:5300 lbs (2404 kg)
Max capacity:51000 lbs (23133 kg)
Drawbar at innermost position:11000 lbs (4989 kg)

Variants

TJ425:similar New Holland model
STX425:wheeled tractor
STX425QT:crawler tractor

Dimensions

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

Electrical

Ground:negative
Battery volts:12
Charging system:alternator

Hydraulics

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

Mechanical

Cab:Surveyor Cab standard
Drive:Four-wheel drive
Brakes:Integrated hydraulic wet disc brakes
Steering:hydrostatic power
Final drives:inboard planetary (standard), compound planetary (HD/scraper)

Production

Type:Four-wheel Drive (4WD) tractor
Series:Steiger STX Series
Built in:Fargo, North Dakota, USA
Years produced:2002 - 2006

Transmission

Options:16-speed full power shift, 24-speed fully synchronized

Synchroshift

Type:fully synchronized
Gears:24 forward and 6 reverse

Full power shift

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

Tractor hitch

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

Power Take-off (PTO)

Rear PTO:independent Optional
Rear PTO Type:1000 (1.75)

Related Models

CaseIH STX430

Model:STX430

CaseIH STX375

Model:STX375

CaseIH STX450

Model:STX450