CaseIH STX450QT

Name: CaseIH STX450QT
Brand: CaseIH

Power

450 hp

Production

2002-2005

Engine

Turbocharged aftercooled diesel, 6-cylinder

Transmission

Full power shift

Over 200 HP 2000s

From the same series:

STX425QT

STX500QT

Introduction

Case IH STX450QT Articulated Crawler Tractor

The Case IH STX450QT is a heavy-duty articulated crawler tractor produced between 2002 and 2005. Manufactured in Fargo, North Dakota, this model belongs to the STX series and is designed for large-scale agricultural operations requiring high traction and power.

Engine and Performance

The tractor is powered by a 14.9-liter, 6-cylinder turbocharged and aftercooled diesel engine. It generates a rated power of 450 hp at 2000 RPM and produces a peak torque of 1669 lb-ft at 1400 RPM. The engine features liquid cooling and a compression ratio of 16.5:1, supported by a dual-element air cleaner system for operation in dusty agricultural environments.

Transmission and Drivetrain

Power is delivered through a full power shift transmission offering 16 forward and 2 reverse gears, controlled by an electro-hydraulic wet disc clutch. The drivetrain utilizes an articulated crawler configuration with 30-inch tracks, providing significant surface contact for flotation. Steering is facilitated by a hydrostatic power system, and final drives are of the inboard planetary type.

Hydraulics and Hitch

The machine is equipped with a pressure flow compensated (PFC) hydraulic system, providing a standard pump flow of 40 gpm, with an optional capacity of 55 gpm. The rear hitch is a category IVN/III system, capable of a lift capacity of 19,500 lbs at 24 inches behind the lift point. An optional independent rear PTO is available, operating at 1000 RPM at an engine speed of 1998 RPM.

Operator Environment and Dimensions

The STX450QT features the Surveyor Cab as standard, designed to provide operator comfort during long field hours. The tractor has a wheelbase of 154 inches and a total operating weight of approximately 51,335 lbs, reflecting its heavy-duty construction and stability requirements.

Conclusion

"The Case IH STX450QT is engineered for high-draft applications and intensive field tasks. Its combination of high-torque engine performance, articulated tracked propulsion, and robust hydraulic capacity makes it a suitable solution for large-acreage farming and demanding soil management practices."

Introduction

Production Information of CaseIH, STX450QT

The production information of the tractor (STX450QT) includes details about its manufacturing.

Articulated Crawler tractor

Built in Fargo, North Dakota, USA


Manufacturer	CaseIH

Dimension and Tires Information of CaseIH, STX450QT

This section sums up the dimension and tires information of the tractor.

No data available

Engine Specifications of CaseIH, STX450QT

Get the specifications for the engine and if different options are available.

Liquid-cooled

Turbocharged aftercooled diesel

6-cylinder


Torque	1669 lb-ft [2263.2 Nm]
Displacement	912 ci [14.9 L]
Air cleaner	Dual paper elements
Bore/Stroke	5.39x6.65 inches [137 x 169 mm]
Starter volts	12
Torque RPM	1400
Rated RPM	2000
Compression	16.5:1
Power	450 hp [335.6 kW]

Transmission Information of CaseIH, STX450QTY

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Type	Full power shift
Gears	16 forward and 2 reverse
Clutch	Electro-hydraulic wet disc

Mechanical Specs of CaseIH, STX450QTY

This section summarizes all mechanical information such as the brake system and other specifications.

Surveyor Cab standard.

Integrated hydraulic wet disc brakes


Drive	Articulated crawler
Final drives	Inboard planetary
Steering	Hydrostatic power

Power Information of CaseIH, STX450QTY

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent OptOptional
Rear PTO Type	1000 (1.75)
Engine RPM	1000@1998

Hydraulics Specifications of CaseIH, STX450QT

Hydraulic system type, pressure, pump flow and valves.


Type	Pressure flow compensated (PFC)
Pump flow	40 gpm [151.4 lpm]
	55 gpmOptOptional [208.2 lpm]

Three-Point Hitch of CaseIH, STX450QT

Hitch category and rear/front lift capacity.


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

Electrical System of CaseIH, STX450QT

Battery voltage, charging system and ground.


Ground	Negative
Charging system	Alternator
Battery volts	12

Frequently asked questions

How much horsepower does the CaseIH STX450QT have?

The CaseIH STX450QT delivers 450 HP.

What years was the CaseIH STX450QT produced?

The CaseIH STX450QT was produced in 2002-2005.

What engine does the CaseIH STX450QT have?

The CaseIH STX450QT is powered by a Turbocharged aftercooled diesel, 6-cylinder engine.

What transmission does the CaseIH STX450QT use?

The CaseIH STX450QT uses a Full power shift transmission.

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