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| info | |
| 2002 - 2005 Steiger STX Series, Articulated Crawler tractor | |
| Previous model: | CaseIH STX440QT |
| Next model: | CaseIH STX480QT |
| Series next: | CaseIH STX500QT |
| Series back: | CaseIH STX425QT |
| Production | |
| Manufacturer: | CaseIH |
| Factory: | Fargo, North Dakota, USA |
| Variants | |
| STX450: | wheeled tractor |
| STX450QT: | crawler tractor |
| Capacity | |
| Fuel: | 300 gal [1135.5 L] |
| 3-Point Hitch | |
| Rear Type: | IVN/III |
| Rear lift (at 24"/610mm): | 19500 lbs [8845 kg] |
| Power Take-off (PTO) | |
| Rear PTO: | independent (optional) |
| Rear RPM: | 1000 |
| Dimensions & Tires | |
| Wheelbase: | 154 inches [391 cm] |
| Weight: | 51335 lbs [23285 kg] |
| Front tire: | tracks |
| Rear tire: | tracks |
| STX450QT Serial Numbers | |
| - Serial numbers unknown - |
| CaseIH STX450QT Power | |
| Engine: | 450 hp [335.6 kW] |
| PTO (claimed): | 395 hp [294.6 kW] |
| Drawbar (tested): | 345.68 hp [257.8 kW] |
| PTO (tested): | 450.29 hp [335.8 kW] |
| Mechanical | |
| Chassis: | articulated crawler |
| Final drives: | inboard planetary |
| Steering: | hydrostatic power |
| Brakes: | integrated hydraulic wet disc |
| Cab: | Surveyor Cab standard. |
| Hydraulics | |
| Type: | pressure flow compensated (PFC) |
| Pump flow: | 40 gpm [151.4 lpm], 55 gpm [208.2 lpm] (optional) |
| Electrical | |
| Ground: | negative |
| Battery | |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 5.394x6.654 inches [137 x 169 mm] |
| Power: | 450 hp [335.6 kW] |
| Air cleaner: | dual paper elements |
| Compression: | 16.5:1 |
| Rated RPM: | 2000 |
| Starter volts: | 12 |
| Engine Detail | |
| Cummins QSX15, turbocharged aftercooled diesel, 6-cylinder, liquid-cooled, 912 ci [14.9 L] |
| info | |
| Previous model: | CaseIH STX440QT |
| Next model: | CaseIH STX480QT |
| Series next: | CaseIH STX500QT |
| Series back: | CaseIH STX425QT |
| Transmission | |
| Type: | full power shift |
| Gears: | 16 forward and 2 reverse |
| info | |
| Previous model: | CaseIH STX440QT |
| Next model: | CaseIH STX480QT |
| Series next: | CaseIH STX500QT |
| Series back: | CaseIH STX425QT |
| Dimensions | |
| Weight (operating): | 51335 lbs [23285 kg] |
| Drawbar capacity: | 5300 lbs [2404 kg], 11000 lbs [4989 kg] (optional) |
| Wheelbase: | 154 inches [391 cm] |
| Frame Width: | 44 inches [111 cm] |
| Front axle: | 4.5 inch diameter [114 mm] |
| Rear axle: | 4.5 inch diameter [114 mm] |
| CaseIH STX450QT Tires | |
| Ag front: | 30 or 36 in tracks |
| Ag rear: | 30 or 36 in tracks |