
CaseIHModel A
CaseIH STX450QT Quadtrac
Articulated
- power
- 450 hp
- displacement
- 912 ci
- Cylinders
- 6
- Forward gears
- 16
Head to head · Articulated

Articulated
Four-Wheel Drive
How they compare
STX450QT Quadtrac is in the 50th percentile; STX500 is in the 69th · 62 models
STX450QT Quadtrac is in the 67th percentile; STX500 is in the 67th · 61 models
STX450QT Quadtrac is in the 50th percentile; STX500 is in the 50th · 61 models
STX450QT Quadtrac is in the 50th percentile; STX500 is in the 50th · 59 models
Full comparison
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Manufacturer | CaseIH | CaseIH | Same |
| Model | STX450QT Quadtrac | STX500 | — |
| Category | Articulated | Four-Wheel Drive | — |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Manufacturer | Cummins | Cummins | Same |
| Model | QSX15 | QSX 15 | — |
| Power Output | 450hp | 500hp | ▲ STX500+50 hp · +11% |
| Rated RPM | 2,000RPM | Not recorded | — |
| Cylinders | 6 | 6 | Same |
| Displacement | 912ci | 912ci | Same |
| Bore | 5.4in | 5.4in | Same |
| Stroke | 6.7in | 6.7in | Same |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Type | Full Power Shift | Full power shift | Same |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Width | 44in | Not recorded | — |
| Operating Weight | 51,335lb | 54,000lb | ▲ STX500+2,665 lb · +5% |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| System Type | Pressure Flow Compensated (PFC) | Pressure flow compensated (PFC) | Same |
| Steering Type | Hydrostatic Power | Not recorded | — |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Type | Not recorded | 1000 (1.75) | — |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Hitch Category | IVN/III | IVN/III | Same |
| Hitch Position | Rear | Rear | Same |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 (Quadtrac) | Not recorded | — |
| Drive Type | Quad-Trac | Not recorded | — |
| Steering Type | Hydrostatic Power | Not recorded | — |
| Spec | CaseIH STX450QT Quadtrac | CaseIH STX500 | Difference |
|---|---|---|---|
| Battery Voltage | Not recorded | 12V | — |
| Starter Type | Electric | Electric | Same |
Category context