
Big BudModel A
Big Bud HN320
Utility
- power
- 320 hp
- displacement
- 855 ci
- Cylinders
- 6
- Forward gears
- 12
Head to head · Utility

Utility
Crawler
How they compare
HN320 is in the 97th percentile; 8345RT is in the 97th · 5,383 models
HN320 is in the 98th percentile; 8345RT is in the 94th · 5,580 models
HN320 is in the 93rd percentile; 8345RT is in the 93rd · 5,720 models
HN320 is in the 98th percentile; 8345RT is in the 98th · 5,107 models
Full comparison
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Manufacturer | Big Bud | John Deere | — |
| Model | HN320 | 8345RT | — |
| Category | Utility | Crawler, Agricultural | — |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Manufacturer | Cummins | John Deere | — |
| Model | NT855 | John Deere PowerTech PSS | — |
| Power Output | 320hp | 329hp | ▲ 8345RT+9 hp · +3% |
| Rated RPM | 2,100RPM | 1,800RPM | ▲ HN320+300 RPM · +17% |
| Cylinders | 6 | 6 | Same |
| Displacement | 855ci | 548ci | ▲ HN320+307 ci · +56% |
| Bore | 5.5in | 4.7in | ▲ HN320+0.8 in · +17% |
| Stroke | 6in | 5.4in | ▲ HN320+0.6 in · +11% |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Type | Gear | Infinitely variable transmission (IVT) | — |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Length | Not recorded | 224in | — |
| Width | Not recorded | 150in | — |
| Height | Not recorded | 131in | — |
| Operating Weight | 36,000lb | 34,670lb | ▲ HN320+1,330 lb · +4% |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| System Type | Open Center | Closed center pressure-flow compensated | — |
| Steering Type | Hydrostatic Power | Electro-hydraulic power | — |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Category 3 hitch | — |
| Hitch Position | Not recorded | Rear | — |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Chassis Type | 4x4 articulated 4WD | 4x4 MFWD 4WD | — |
| Drive Type | 4WD | 4WD | Same |
| Steering Type | Hydrostatic Power | Electro-hydraulic power | — |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Standard | Not recorded | Tier 4B | — |
| Control System | Not recorded | DOC, SCR, and regenerative DPF | — |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Coolant | Not recorded | 10.6gal | — |
| Spec | Big Bud HN320 | John Deere 8345RT | Difference |
|---|---|---|---|
| Type | Not recorded | Cab | — |
Category context