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
John Deere 9R 640 vs John Deere 9RX 640
John DeereModel B
John Deere 9RX 640
Four-Wheel Drive
- power
- 632 hp
- displacement
- 827 ci
- Cylinders
- 6
- Forward gears
- 18
John DeereJohn Deere 9R 640
vs
John DeereJohn Deere 9RX 640
How they compare
Headline specs vs. the whole Four-Wheel Drive
Engine Power
= Effectively tied9R 640632 hp
9RX 640632 hp
Median Four-Wheel Drive Tractor375 hp
9R 640 is in the 99th percentile; 9RX 640 is in the 99th · 162 models
Engine Displacement
= Effectively tied9R 640827 ci
9RX 640827 ci
Median Four-Wheel Drive Tractor826 ci
9R 640 is in the 53rd percentile; 9RX 640 is in the 53rd · 152 models
Cylinders
= Effectively tied9R 6406
9RX 6406
Median Four-Wheel Drive Tractor6
9R 640 is in the 50th percentile; 9RX 640 is in the 50th · 159 models
Forward Gears
= Effectively tied9R 64018
9RX 64018
Median Four-Wheel Drive Tractor16
9R 640 is in the 86th percentile; 9RX 640 is in the 86th · 146 models
9R 640 (A)9RX 640 (B)Median Four-Wheel Drive Tractor
Full comparison
Every spec, side by side
General Information
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Manufacturer | John Deere | John Deere | Same |
| Model | 9R 640 | 9RX 640 | — |
| Category | Four-Wheel Drive | Four-Wheel Drive | Same |
Engine
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Manufacturer | John Deere | John Deere | Same |
| Model | JD14 | JD14 | Same |
| Power Output | 632hp | 632hp | Same |
| Rated RPM | 2,100RPM | 2,100RPM | Same |
| Cylinders | 6 | 6 | Same |
| Displacement | 827ci | 827ci | Same |
| Bore | 5.2in | 5.2in | Same |
| Stroke | 6.5in | 6.5in | Same |
Transmission
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Type | Full power shift | full power shift | Same |
Dimensions & Weight
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Length | 313in | 346in | ▲ 9RX 640+33 in · +11% |
| Width | 173in | 30in | ▲ 9R 640+143 in · +477% |
| Height | 147in | 146in | ▲ 9R 640+1 in · <1% |
| Operating Weight | 46,680lb | 56,320lb | ▲ 9RX 640+9,640 lb · +21% |
Hydraulics
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| System Type | Closed center pressure/flow compensated | closed center pressure/flow compensated | Same |
Hitch & Towing
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Hitch Type | IV/IVN | IVN/IV | — |
| Hitch Category | Category 3 | 3 | — |
| Hitch Position | Rear | Rear | Same |
Electrical
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Starter Type | Electric | electric | Same |
Capacities
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Coolant | 14.9gal | 14.9gal | Same |
Operator Station
| Spec | John Deere 9R 640 | John Deere 9RX 640 | Difference |
|---|---|---|---|
| Type | Cab | Cab | Same |
Category context
Both models against the field
Engine Power
median 375 hpA · 99th percentile (632 hp)B · 99th percentile (632 hp)
Engine Displacement
median 826 ciA · 53rd percentile (827 ci)B · 53rd percentile (827 ci)
Cylinders
median 6A · 50th percentile (6)B · 50th percentile (6)
Forward Gears
median 16A · 86th percentile (18)B · 86th percentile (18)
Operating Weight
median 37,428 lbA · 82nd percentile (46,680 lb)B · 96th percentile (56,320 lb)
A · 9R 640B · 9RX 640Median Four-Wheel Drive Tractor