| Manufacturer | CaseIH |
| Price | - |
| Model | STX450 |
| Equipment Type | Four-wheel Drive 4WD Tractors |
| Factory | Fargo, North Dakota, USA |
OCED TRACTOR TEST 1784 2
| Description | Diesel 16-speed 4WD October 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 |
| Max power | 371.35hp / 276.9kW |
| Fuel use | 21.8gal/hour / 82.5l/hour |
| Power at rated engine speed | 400.64hp / 298.8kW |
| Max pull | 44,525lbs / 20196kg |
CASEIH STX450 POWER
| Engine | 450hp / 335.6kW |
| Drawbar (claimed) | 360hp / 268.5kW |
| PTO (claimed) | 395hp / 294.6kW |
| Drawbar (tested) | 371.35hp / 276.9kW |
| PTO (tested) | 454.23hp / 338.7kW |
ENGINE DETAIL
The CaseIH STX450 features a robust Cummins QSX15 engine, delivering 450 hp and impressive torque of 1669 lb-ft at 1400 RPM, ideal for heavy-duty agricultural applications. Its high displacement of 14.9L and dual paper element air cleaner enhance performance and engine longevity. However, operators should note that the high compression ratio of 16.5:1 may require high-quality fuel to prevent knocking and ensure optimal efficiency.
| Description | Cummins QSX15 turbocharged aftercooled diesel 6-cylinder liquid-cooled |
| Displacement | 912ci / 14.9L |
| Bore/Stroke | 5.39x6.65inches / 137x 169 mm |
| Power | 450hp / 335.6kW |
| Air cleaner | dual paper elements |
| Compression | 16.5:1 |
| Rated RPM | 2000 |
| Torque | 1669 lb-ft /2263.2 Nm |
| Torque RPM | 1400 |
| Starter volts | 12 |
CASEIH STX450 ENGINE
The CaseIH STX450 tractor, powered by a robust Cummins 14.9L 6-cylinder diesel engine, offers exceptional torque and fuel efficiency, making it suitable for heavy-duty applications and large-scale farming operations. With a significant fuel tank capacity of 300 gallons (1135.5L), it supports extended fieldwork without frequent refueling, enhancing productivity. However, the size and weight may present challenges in maneuvering on smaller plots or during transport.
| Description | Cummins 14.9L 6-cyl diesel |
| Fuel tank | 300gal / 1135.5L |
TRANSMISSION
The CaseIH STX450 features a full power shift transmission with 16 forward and 2 reverse gears, allowing for smooth and efficient power delivery during varied field applications. The electro-hydraulic wet disc clutch enhances durability and minimizes wear, ideal for heavy-duty tasks such as tillage or heavy hauling. However, potential challenges may arise in maintaining the electro-hydraulic system, requiring regular checks to ensure optimal performance.
| Type | full power shift |
| Gears | 16 forward and 2 reverse |
| Clutch | electro-hydraulic wet disc |
MECHANICAL
The CaseIH STX450 features a 4x4 articulated chassis and compound planetary final drives, offering superior traction and maneuverability on challenging terrains, making it ideal for large-scale agricultural tasks. Its hydrostatic power steering enhances operational control, while the 16-speed full power shift transmission provides seamless gear transitions for optimized performance during variable field conditions. However, the integrated hydraulic wet disc brakes, while efficient, may require more maintenance than traditional braking systems, posing a potential challenge for continuous use.
| Chassis | 4x4 articulated 4WD |
| Final drives | compound planetary |
| Steering | hydrostatic power |
| Brakes | integrated hydraulic wet disc |
| Cab | Surveyor Cab standard. |
| Transmission | 16-speed full power shift |
HYDRAULICS
| Type | pressure flow compensated (PFC) |
| Rear valves | 4 to 7 |
| Pump flow | 40gpm / 151.4lpm/55gpm / 208.2lpm |
TRACTOR HITCH
| Rear Type | IVN/III |
| Rear lift (at 24 | 19500lbs / 8845kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 1000 (1.75) |
DIMENSIONS
| Wheelbase | 154inches / 391cm |
| Length | 317.5inches / 806cm |
| Width | 44inches / 111cm (frame) |
| Height | 152.1inches / 386cm |
| Front axle | 4.5 inch diameter /114 mm |
| Rear axle | 4.5 inch diameter /114 mm |
| Rear tread | 60 to 176inches / 152to 447 cm |
CASEIH STX450 WEIGHT
| Operating | 39325lbs / 17837kg |
| Ballasted | 44560lbs / 20212kg |
| Max capacity | 52000lbs / 23587kg |
| Max Drawbar | 5300lbs / 2404kg/11000lbs / 4989kg *Drawbar at innermost position. |
DIMENSIONS & TIRES
The CaseIH STX450's 154-inch wheelbase provides excellent stability and traction for heavy tillage and fieldwork, reducing the risk of soil compaction. Weighing 39,325 lbs, it is ideal for severe pulling applications, but users should note its considerable mass may limit maneuverability in tight spaces. Overall, this tractor excels in large agricultural operations where durability and strength are paramount, while potentially posing challenges in smaller or more intricate plots.
| Wheelbase | 154inches / 391cm |
| Weight | 39325lbs / 17837kg |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Battery volts | 12 |