
John DeereModel A
John Deere 9R 640
Four-Wheel Drive
- power
- 632 hp
- displacement
- 827 ci
- Cylinders
- 6
- Forward gears
- 18
Head to head · Four-Wheel Drive

Four-Wheel Drive

Utility
How they compare
9R 640 is in the 53rd percentile; Workhorse 145 is in the 2nd · 152 models
9R 640 is in the 50th percentile; Workhorse 145 is in the 50th · 159 models
9R 640 is in the 86th percentile; Workhorse 145 is in the 86th · 146 models
9R 640 is in the 82nd percentile; Workhorse 145 is in the 3rd · 132 models
Full comparison
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Manufacturer | John Deere | White | — |
| Model | 9R 640 | Workhorse 145 | — |
| Category | Four-Wheel Drive | Utility | — |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Manufacturer | John Deere | CDC-Cummins | — |
| Model | JD14 | Not recorded | — |
| Power Output | 632hp | Not recorded | — |
| Rated RPM | 2,100RPM | 2,200RPM | ▲ Workhorse 145+100 RPM · +5% |
| Cylinders | 6 | 6 | Same |
| Displacement | 827ci | 359ci | ▲ 9R 640+468 ci · +130% |
| Bore | 5.2in | 4in | ▲ 9R 640+1.2 in · +30% |
| Stroke | 6.5in | 4.7in | ▲ 9R 640+1.8 in · +38% |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Type | Full power shift | partial power shift | — |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Length | 313in | 175in | ▲ 9R 640+138 in · +79% |
| Width | 173in | Not recorded | — |
| Height | 147in | Not recorded | — |
| Operating Weight | 46,680lb | 14,665lb | ▲ 9R 640+32,015 lb · +218% |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| System Type | Closed center pressure/flow compensated | closed center | — |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Hitch Type | IV/IVN | Not recorded | — |
| Hitch Category | Category 3 | III/II | — |
| Hitch Position | Rear | Not recorded | — |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Starter Type | Electric | 12-volt | — |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Coolant | 14.9gal | Not recorded | — |
| Spec | John Deere 9R 640 | White Workhorse 145 | Difference |
|---|---|---|---|
| Type | Cab | Not recorded | — |
Category context