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Big BudModel A
Big Bud 450/20
Utility
- power
- 450 hp
- displacement
- 1,150 ci
- Cylinders
- 6
- Forward gears
- 12
Head to head · Utility
Utility

Articulated
How they compare
450/20 is in the 99th percentile; STX450QT Quadtrac is in the 99th · 5,383 models
450/20 is in the 99th percentile; STX450QT Quadtrac is in the 99th · 5,580 models
450/20 is in the 93rd percentile; STX450QT Quadtrac is in the 93rd · 5,720 models
450/20 is in the 50th percentile; STX450QT Quadtrac is in the 73rd · 4,941 models
Full comparison
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| Manufacturer | Big Bud | CaseIH | — |
| Model | 450/20 | STX450QT Quadtrac | — |
| Category | Utility | Articulated | — |
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| Manufacturer | Cummins | Cummins | Same |
| Model | Not recorded | QSX15 | — |
| Power Output | 450hp | 450hp | Same |
| Rated RPM | 2,100RPM | 2,000RPM | ▲ 450/20+100 RPM · +5% |
| Cylinders | 6 | 6 | Same |
| Displacement | 1,150ci | 912ci | ▲ 450/20+238 ci · +26% |
| Bore | 6.3in | 5.4in | ▲ 450/20+0.9 in · +17% |
| Stroke | 6.3in | 6.7in | ▲ STX450QT Quadtrac+0.4 in · +6% |
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| Type | Gear | Full Power Shift | — |
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| Width | Not recorded | 44in | — |
| Operating Weight | 41,500lb | 51,335lb | ▲ STX450QT Quadtrac+9,835 lb · +24% |
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| System Type | Not recorded | Pressure Flow Compensated (PFC) | — |
| Steering Type | Hydrostatic Power | Hydrostatic Power | Same |
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | IVN/III | — |
| Hitch Position | Not recorded | Rear | — |
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| Chassis Type | 4x4 4WD | 4x4 (Quadtrac) | — |
| Drive Type | Four-wheel Drive (4WD) | Quad-Trac | — |
| Steering Type | Hydrostatic Power | Hydrostatic Power | Same |
| Spec | Big Bud 450/20 | CaseIH STX450QT Quadtrac | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Category context