Production
| Description | Articulated Crawler tractor / Built in Fargo, North Dakota, USA |
|---|---|
| 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 | 5.39x6.65 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 | 450 hp (335.6 kW) |
| Rated RPM | 2000 |
| Starter volts | 12 |
| Torque | 1669 lb-ft (2263.2 Nm) |
| Torque RPM | 1400 |
| Drawbar (tested) | 345.68 hp (257.8 kW) |
| PTO (claimed) | 395 hp (294.6 kW) |
| PTO (tested) | 450.29 hp (335.8 kW) |
Transmission
| Clutch | electro-hydraulic wet disc |
|---|---|
| Gears | 16 forward and 2 reverse |
| Transmission type | 16-speed full power shift |
| Type | full power shift |
Mechanical
| Cab | Surveyor Cab standard. |
|---|---|
| Description | Integrated hydraulic wet disc brakes |
| Drive | articulated crawler |
| Final drives | inboard planetary |
| Steering | hydrostatic power |
Hydraulics
| Pump flow | 40 gpm (151.4 lpm) |
|---|---|
| Type | pressure flow compensated (PFC) |
Hitch
| Rear lift (at 24"/610mm) | 19500 lbs (8845 kg) |
|---|---|
| Rear Type | IVN/III |
PTO
| Engine RPM | 1000@1998 |
|---|---|
| Rear PTO | independent OptOptional |
| Rear PTO Type | 1000 (1.75) |
Electrical
| Battery volts | 12 |
|---|---|
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Front axle | 4.5 inch diameter (114 mm) |
|---|---|
| Rear axle | 4.5 inch diameter (114 mm) |
| Wheelbase | 154 inches (391 cm) |
| Width | 44 inches (frame) (111 cm) |
CaseIH STX450QT Tracks
| Width | 30 inches (76 cm) / 36 inches (91 cm) |
|---|
CaseIH STX450QT Weight
| Max capacity | 53264 lbs (24160 kg) |
|---|---|
| Max Drawbar | 5300 lbs (2404 kg) |
| Operating | 51335 lbs (23285 kg) |
Dimensions & Tracks
| Description | 30-inch tracks |
|---|---|
| Weight | 51335 lbs (23285 kg) |
| Wheelbase | 154 inches (391 cm) |
OCED Tractor Test 1785
| Description | Diesel 16-speed CrawlerOctober 4 - 19, 2000Link: OCED Tractor Test 1785 file / PTO performance / Drawbar performance / Gear 4 used for power test. / Gear 3 used for pull test. |
|---|---|
| Fuel use | 22.3 gal/hour (84.4 l/hour) / 22.0 gal/hour (83.3 l/hour) / 22.1 gal/hour (83.6 l/hour) |
| Max power | 450.29 hp (335.8 kW) / 345.68 hp (257.8 kW) |
| Max pull | 38412 lbs (17423 kg) |
| Power at rated engine speed | 399.14 hp (297.6 kW) |
References
| Description | STX Series Steiger Tractors published in 2002, by CaseIH* / *Publication contains known errors. |
|---|
Variants
| STX450 | wheeled tractor |
|---|---|
| STX450QT | crawler tractor |