
CaseIHModel A
CaseIH STX380QT Quadtrac
Articulated
- power
- 380 hp
- displacement
- 786 ci
- Cylinders
- 6
- Forward gears
- 16
Head to head · Articulated

Articulated
Crawler
How they compare
STX380QT Quadtrac is in the 29th percentile; 85E is in the 27th · 62 models
STX380QT Quadtrac is in the 25th percentile; 85E is in the 20th · 61 models
STX380QT Quadtrac is in the 50th percentile; 85E is in the 50th · 61 models
STX380QT Quadtrac is in the 50th percentile; 85E is in the 3rd · 59 models
Full comparison
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| Manufacturer | CaseIH | Challenger | — |
| Model | STX380QT Quadtrac | 85E | — |
| Category | Articulated | Crawler | — |
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| Manufacturer | Iveco | Caterpillar | — |
| Power Output | 380hp | 375hp | ▲ STX380QT Quadtrac+5 hp · +1% |
| Rated RPM | 2,000RPM | 2,100RPM | ▲ 85E+100 RPM · +5% |
| Cylinders | 6 | 6 | Same |
| Displacement | 786ci | 729ci | ▲ STX380QT Quadtrac+57 ci · +8% |
| Bore | 5.3in | 5.1in | ▲ STX380QT Quadtrac+0.2 in · +4% |
| Stroke | 5.9in | 5.9in | Same |
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| Type | Full power shift | Full Power Shift | Same |
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| Width | 30in | 25in | ▲ STX380QT Quadtrac+5 in · +20% |
| Operating Weight | 54,000lb | 34,895lb | ▲ STX380QT Quadtrac+19,105 lb · +55% |
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| System Type | Pressure flow compensated | Closed | — |
| Steering Type | Hydrostatic power | Hydrostatic Differential Steering | — |
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| Steering Type | Hydrostatic power | Hydrostatic Differential Steering | — |
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| Battery Voltage | Not recorded | 12V | — |
| Starter Type | Electric | Electric | Same |
| Spec | CaseIH STX380QT Quadtrac | Challenger 85E | Difference |
|---|---|---|---|
| Coolant | Not recorded | 20gal | — |
Category context