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CaseIHModel A
CaseIH STX440QT Quadtrac
Crawler
- power
- 440 hp
- displacement
- 912 ci
- Cylinders
- 6
- Forward gears
- 16
Head to head · Crawler
Crawler

Crawler
How they compare
STX440QT Quadtrac is in the 80th percentile; 520DT is in the 90th · 142 models
STX440QT Quadtrac is in the 91st percentile; 520DT is in the 91st · 191 models
STX440QT Quadtrac is in the 50th percentile; 520DT is in the 50th · 192 models
STX440QT Quadtrac is in the 69th percentile; 520DT is in the 69th · 179 models
Full comparison
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Manufacturer | CaseIH | Versatile | — |
| Model | STX440QT Quadtrac | 520DT | — |
| Category | Crawler, Articulated | Crawler, Articulated | Same |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Manufacturer | Cummins | Cummins | Same |
| Model | QSX15 | QSX15 | Same |
| Power Output | 440hp | 520hp | ▲ 520DT+80 hp · +18% |
| Rated RPM | 2,000RPM | 1,800RPM | ▲ STX440QT Quadtrac+200 RPM · +11% |
| Cylinders | 6 | 6 | Same |
| Displacement | 912ci | 912ci | Same |
| Bore | 5.4in | 5.4in | Same |
| Stroke | 6.7in | 6.7in | Same |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Type | full power shift | Full power shift | Same |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Width | 44in | Not recorded | — |
| Operating Weight | 51,335lb | 58,850lb | ▲ 520DT+7,515 lb · +15% |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| System Type | closed center load sensing | Closed center load sensing | Same |
| Steering Type | hydrostatic power | Not recorded | — |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Hitch Category | IVN | Category 3 | — |
| Hitch Position | Rear | Rear | Same |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Chassis Type | articulated crawler | Crawler | — |
| Drive Type | Quadtrac | Track | — |
| Steering Type | hydrostatic power | Not recorded | — |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Battery Voltage | 12V | Not recorded | — |
| Starter Type | Electric | Electric | Same |
| Spec | CaseIH STX440QT Quadtrac | Versatile 520DT | Difference |
|---|---|---|---|
| Standard | Not recorded | Tier IV | — |
Category context