Overview
The CaseIH STX440 is a four-wheel drive farm tractor manufactured in Fargo, North Dakota, featuring a 14.9L 6-cylinder Cummins QSX15 turbocharged diesel engine. It is equipped with a 16-speed full power shift transmission and a Surveyor Cab as standard equipment. Performance testing in OCED Test 1784 recorded a maximum drawbar pull of 44,525 lbs and a maximum PTO power output of 454.23 hp.
Ideal Applications
Engine and Torque Specifications:
The Cummins diesel engine is rated at 440 hp at 2000 RPM and produces 1650 lb-ft of torque at 1400 RPM with a 300-gallon fuel capacity.
Tested Drawbar and Pull Capacity:
OCED Test 1784 documented a maximum pull of 44,525 lbs and a tested drawbar power of 371.35 hp using the 3rd and 4th gears respectively.
Hydraulic and Hitch Configuration:
The tractor features a closed center load sensing hydraulic system with a 40 gpm pump flow and a Type IVN rear hitch capable of lifting 19,500 lbs at 24 inches.
Production
| Description | Built in Fargo, North Dakota, USA |
|---|---|
| Drive type | Four-wheel Drive (4WD) tractor |
| Manufacturer | CaseIH |
Engine
| Engine type | Cummins 14.9L 6-cyl diesel |
|---|---|
| Fuel tank | 300 gal (1135.5 L) |
| Air cleaner | dual paper elements |
| Bore/Stroke | 5.394x6.654 inches (137 x 169 mm) |
| Compression | 16.5:1 |
| Description | Cummins QSX15 / turbocharged aftercooled diesel / 6-cylinder / liquid-cooled |
| Displacement | 912 ci (14.9 L) |
| Power | 440 hp (328.1 kW) |
| Rated RPM | 2000 |
| Starter volts | 12 |
| Torque | 1650 lb-ft (2237.4 Nm) |
| Torque RPM | 1400 |
| Drawbar (tested) | 371.35 hp (276.9 kW) |
| PTO (tested) | 454.23 hp (338.7 kW) |
Transmission
| Transmission type | 16-speed full power shift |
|---|
Mechanical
| Cab | Surveyor Cab standard. |
|---|---|
| Description | Integrated hydraulic wet disc brakes |
| Drive type | Four-wheel drive |
| Final drives | compound planetary |
| Steering | hydrostatic power |
Hydraulics
| Pump flow | 40 gpm (151.4 lpm) |
|---|---|
| Rear valves | 4 to 7 |
| Type | closed center load sensing |
Hitch
| Rear lift (at 24"/610mm) | 19500 lbs (8845 kg) |
|---|---|
| Rear Type | IVN |
PTO
| Rear PTO | independent OptOptional |
|---|---|
| Rear PTO Type | 1000 |
Electrical
| Batteries | 2 |
|---|---|
| Battery volts | 12 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Ag front | 20.8R42 |
|---|---|
| Ag rear | 20.8R42 |
| Rear axle | 4.5 inch diameter (114 mm) |
| Wheelbase | 154 inches (391 cm) |
| Width | 44 inches (frame) (111 cm) |
| Front tire | 20.8R42 |
| Rear tire | 20.8R42 |
| Weight | 39325 lbs (17837 kg) |
| Wheelbase | 154 inches (391 cm) |
CaseIH STX440 Weight
| Ballasted | 44560 lbs (20212 kg) |
|---|---|
| Max capacity | 52800 lbs (23950 kg) |
| Operating | 39325 lbs (17837 kg) |
OCED Tractor Test 1784
| Description | Diesel 16-speed 4WDOctober 11, 2000 - October 19;2000, Link: OCED Tractor Test 1784 file / PTO performance / Drawbar performance / Gear 4 used for power test. / Gear 3 used for pull test. |
|---|---|
| Fuel use | 22.8 gal/hour (86.3 l/hour) / 22.1 gal/hour (83.6 l/hour) / 21.8 gal/hour (82.5 l/hour) |
| Max power | 454.23 hp (338.7 kW) / 371.35 hp (276.9 kW) |
| Max pull | 44,525 lbs (20196 kg) |
| Power at rated engine speed | 400.64 hp (298.8 kW) |
References
| Description | STX Series Steiger Tractors published in 2000, by CaseIH* / *Publication contains known errors. |
|---|