
John DeereModel A
John Deere 7815
Row Crop
- power
- 202 hp
- displacement
- 414 ci
- Cylinders
- 6
- Forward gears
- 16
Head to head · Row Crop

Row Crop
Row Crop
How they compare
7815 is in the 77th percentile; 8120 is in the 77th · 1,206 models
7815 is in the 66th percentile; 8120 is in the 85th · 1,409 models
7815 is in the 50th percentile; 8120 is in the 50th · 1,417 models
7815 is in the 50th percentile; 8120 is in the 50th · 1,200 models
Full comparison
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Manufacturer | John Deere | John Deere | Same |
| Model | 7815 | 8120 | — |
| Category | Row Crop | Row Crop | Same |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Manufacturer | John Deere | John Deere | Same |
| Power Output | 202hp | 200hp | ▲ 7815+2 hp · +1% |
| Rated RPM | 2,100RPM | 2,200RPM | ▲ 8120+100 RPM · +5% |
| Cylinders | 6 | 6 | Same |
| Displacement | 414ci | 496ci | ▲ 8120+82 ci · +20% |
| Bore | 4.2in | 4.6in | ▲ 8120+0.4 in · +10% |
| Stroke | 5in | 5.1in | ▲ 8120+0.1 in · +2% |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Type | Partial power shift | Full power shift | — |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Length | 212in | 210in | ▲ 7815+2 in · <1% |
| Width | 96in | Not recorded | — |
| Height | 123in | 120in | ▲ 7815+3 in · +3% |
| Operating Weight | 17,860lb | 19,105lb | ▲ 8120+1,245 lb · +7% |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| System Type | Closed center load sensing | Closed center pressure-flow compensated (PFC) | — |
| Steering Type | Hydrostatic power | Hydrostatic power | Same |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Type | Not recorded | Independent | — |
| Speed 1 | Not recorded | 540rpm | — |
| Speed 2 | Not recorded | 1,000rpm | — |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Hitch Type | 3/3N | III/IIIN | — |
| Hitch Category | Category 3 | IIIN | — |
| Hitch Position | Not recorded | Rear | — |
| Hitch Capacity | Not recorded | 12,353lb | — |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 MFWD 4WD | Not recorded | — |
| Drive Type | 4WD | 4x2 (2WD) | — |
| Steering Type | Hydrostatic power | Hydrostatic power | Same |
| Brake Type | Not recorded | Hydraulic wet disc | — |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Starter Type | Not recorded | Electric | — |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Coolant | 7.7gal | 9gal | ▲ 8120+1.3 gal · +17% |
| Spec | John Deere 7815 | John Deere 8120 | Difference |
|---|---|---|---|
| Type | Cab | Cab (standard) | — |
Category context