CaseIH STX440
Power
440 hp
Production
2001
Engine
Turbocharged aftercooled diesel, 6-cylinder
Transmission
Full power shift
Drive
4WD
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Introduction
Case IH STX440 Four-Wheel Drive Tractor
The Case IH STX440 is a high-horsepower four-wheel drive tractor produced in 2001, belonging to the STX series manufactured in Fargo, North Dakota. This machine is engineered for heavy-duty agricultural applications requiring significant tractive effort and hydraulic capacity.
Engine and Performance
The tractor is powered by a 14.9-liter, 6-cylinder liquid-cooled diesel engine. Utilizing a turbocharged and aftercooled induction system, it delivers 440 horsepower at 2000 rated RPM. The engine produces a peak torque of 1650 lb-ft at 1400 RPM, providing the high-torque characteristics necessary for deep tillage and large-scale farming operations.
Transmission and Drivetrain
The STX440 features a full power shift transmission providing 16 forward gears and 2 reverse gears, allowing for on-the-go shifting without clutch engagement. Power is transferred to the ground via a four-wheel drive system equipped with compound planetary final drives and hydrostatic power steering for maneuverability. Braking is managed by integrated hydraulic wet disc brakes.
Hydraulics and Hitch
The hydraulic system utilizes a closed-center load-sensing configuration designed to optimize flow based on implement demand. The base pump provides 40 gpm, with an optional configuration reaching 55 gpm. The rear of the tractor is equipped with a Category IVN hitch offering a lift capacity of 19,500 lbs (8,845 kg), supported by 4 to 7 rear remote valves to accommodate complex implement requirements.
Dimensions and Construction
Built on a chassis with a 154-inch wheelbase and a 44-inch frame width, the STX440 is designed for stability under heavy loads. It is fitted with 20.8R42 tires on both front and rear axles. The Surveyor Cab is standard, providing the operator with environmental control and visibility for long work periods.
Conclusion
The Case IH STX440 is a specialized heavy-duty tractor intended for large-acreage operations. Its combination of high torque output, robust hydraulic flow, and power shift transmission suits it for intensive primary cultivation and high-capacity implement management.
Production Information of CaseIH, STX440
- Four-wheel Drive (4WD) tractor
- Built in Fargo, North Dakota, USA
| Manufacturer | CaseIH |
|---|
Dimension and Tires Information of CaseIH, STX440
| Wheelbase | 154 inches [391 cm] |
|---|---|
| Width | 44 inches (frame) [111 cm] |
| Rear axle | 4.5 inch diameter [114 mm] |
| Ag front | 20.8R42 |
|---|---|
| Ag rear | 20.8R42 |
Engine Specifications of CaseIH, STX440
- Liquid-cooled
- Turbocharged aftercooled diesel
- 6-cylinder
| Torque | 1650 lb-ft [2237.4 Nm] |
|---|---|
| Displacement | 912 ci [14.9 L] |
| Air cleaner | Dual paper elements |
| Bore/Stroke | 5.394x6.654 inches [137 x 169 mm] |
| Starter volts | 12 |
| Torque RPM | 1400 |
| Rated RPM | 2000 |
| Compression | 16.5:1 |
| Power | 440 hp [328.1 kW] |
Transmission Information of CaseIH, STX440
Transmission variants 1
| Type | Full power shift |
|---|---|
| Gears | 16 forward and 2 reverse |
| Clutch | Electro-hydraulic wet disc |
Mechanical Specs of CaseIH, STX440
- Four-wheel drive
- Surveyor Cab standard.
- Integrated hydraulic wet disc brakes
| Final drives | Compound planetary |
|---|---|
| Steering | Hydrostatic power |
Power Information of CaseIH, STX440
| Rear PTO(optional) | Independent |
|---|---|
| Rear PTO Type | 1000 |
Hydraulics Specifications of CaseIH, STX440
| Type | Closed center load sensing |
|---|---|
| Type(optional) | 55 gpm [208.2 lpm] |
| Rear valves | 4 to 7 |
| Pump flow | 40 gpm [151.4 lpm] |
Three-Point Hitch of CaseIH, STX440
| Rear Type | IVN |
|---|---|
| Rear lift (at 24"/610mm) | 19500 lbs [8845 kg] |
Electrical System of CaseIH, STX440
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Batteries | 2 |
Where it sits
With 440 HP, the CaseIH STX440 sits just below STX450 (450 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 STX440 have?
The CaseIH STX440 delivers 440 HP.
What years was the CaseIH STX440 produced?
The CaseIH STX440 was produced in 2001.
What engine does the CaseIH STX440 have?
The CaseIH STX440 is powered by a Turbocharged aftercooled diesel, 6-cylinder engine.
What transmission does the CaseIH STX440 use?
The CaseIH STX440 uses a Full power shift transmission.
Is the CaseIH STX440 4WD?
The CaseIH STX440 is available in 4WD.