CaseIH STX450
Power
450 hp
Production
2002-2005
Engine
Turbocharged aftercooled diesel, 6-cylinder
Transmission
Full power shift
Drive
4WD
From the same series:
Introduction
Case IH STX450 Four-Wheel Drive Tractor
The Case IH STX450 is a high-horsepower four-wheel drive tractor produced between 2002 and 2005 at the Case IH facility in Fargo, North Dakota, USA. This model is engineered for large-scale agricultural operations requiring significant traction and power.
Engine and Performance
The tractor is powered by a 14.9-liter, 6-cylinder turbocharged and aftercooled diesel engine. It delivers 450 horsepower (335.6 kW) at a rated speed of 2000 RPM. The engine produces a substantial torque of 1669 lb-ft (2263.2 Nm) at 1400 RPM, providing consistent lugging ability for heavy-duty field work. The compression ratio is 16.5:1, and the system utilizes a dual paper element air cleaner.
Transmission and Drive
The STX450 features a full power shift transmission providing 16 forward and 2 reverse gears. Power is transferred to the wheels via an electro-hydraulic wet disc clutch. The drivetrain is configured for four-wheel drive, supported by compound planetary final drives and hydrostatic power steering for operational control.
Hydraulics and Hitch
The hydraulic system is of the pressure flow compensated (PFC) type. It offers a total flow of 40 gpm (151.4 lpm), with an optional capacity of up to 55 gpm (208.2 lpm). The tractor is equipped with 4 to 7 rear valves to support various implements. The rear hitch is a category IVN/III type, featuring a lift capacity of 19,500 lbs (8845 kg) measured at 24 inches behind the lift point.
Dimensions and Operator Environment
The tractor sits on a 154-inch wheelbase with an overall height of 152.1 inches. It is equipped with the Surveyor Cab as standard to provide the operator with visibility and comfort. The chassis includes 4.5-inch diameter front and rear axles, with rear tread width adjustable between 60 and 176 inches.
Conclusion
The Case IH STX450 is a robust heavy-duty tractor designed for intensive primary tillage and large-acreage cultivation. Its high torque output, pressure-compensated hydraulic system, and durable four-wheel drive configuration make it suitable for professional farming operations requiring reliable, high-capacity machinery.
Production Information of CaseIH, STX450
- The New Holland TJ450 is the same as the CaseIH STX450.
- Four-wheel Drive (4WD) tractor
- Built in Fargo, North Dakota, USA
| Manufacturer | CaseIH |
|---|
Dimension and Tires Information of CaseIH, STX450
| Rear tread | 60 to 176 inches [152 to 447 cm] |
|---|---|
| Wheelbase | 154 inches [391 cm] |
| Front axle | 4.5 inch diameter [114 mm] |
| Height | 152.1 inches [386 cm] |
| Length | 317.5 inches [806 cm] |
| Rear axle | 4.5 inch diameter [114 mm] |
| Width | 44 inches (frame) [111 cm] |
Engine Specifications of CaseIH, STX450
- Liquid-cooled inline
- 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, STX450
Transmission variants 1
| Type | Full power shift |
|---|---|
| Gears | 16 forward and 2 reverse |
| Clutch | Electro-hydraulic wet disc |
Mechanical Specs of CaseIH, STX450
- Four-wheel drive
- Surveyor Cab standard.
- Integrated hydraulic wet disc brakes
| Final drives | Compound planetary |
|---|---|
| Steering | Hydrostatic power |
Power Information of CaseIH, STX450
| Rear PTO(optional) | Independent |
|---|---|
| Rear PTO Type | 1000 (1.75) |
Hydraulics Specifications of CaseIH, STX450
| Type | Pressure flow compensated (PFC) |
|---|---|
| Type(optional) | 55 gpm [208.2 lpm] |
| Total flow | 40 gpm [151.4 lpm] |
| Rear valves | 4 to 7 |
| SCV flow | 35 gpm [132.5 lpm] |
Three-Point Hitch of CaseIH, STX450
| Rear Type | IVN/III |
|---|---|
| Rear lift (at 24"/610mm) | 19500 lbs [8845 kg] |
Electrical System of CaseIH, STX450
| Ground | Negative |
|---|---|
| Charging system | Alternator |
| Battery volts | 12 |
Where it sits
With 450 HP, the CaseIH STX450 sits between STX440 (440 HP) and STX480 (480 HP) in CaseIH's range. Its power puts it in the 98th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the CaseIH STX450 have?
The CaseIH STX450 delivers 450 HP.
What years was the CaseIH STX450 produced?
The CaseIH STX450 was produced in 2002-2005.
What engine does the CaseIH STX450 have?
The CaseIH STX450 is powered by a Turbocharged aftercooled diesel, 6-cylinder engine.
What transmission does the CaseIH STX450 use?
The CaseIH STX450 uses a Full power shift transmission.
Is the CaseIH STX450 4WD?
The CaseIH STX450 is available in 4WD.