John DeereModel A
John Deere 4066M
Utility
- power
- 65.8 hp
- displacement
- 128 ci
- Cylinders
- 4
- Forward gears
- 12
Head to head · Utility
John Deere 4066M vs John Deere 4066R
John DeereModel B
John Deere 4066R
Utility
- power
- 65.8 hp
- displacement
- 128 ci
- Cylinders
- 4
- Forward gears
- 12
John DeereJohn Deere 4066M
vs
John DeereJohn Deere 4066R
How they compare
Headline specs vs. the whole Utility
Engine Power
= Effectively tied4066M65.8 hp
4066R65.8 hp
Median Utility Tractor55 hp
4066M is in the 60th percentile; 4066R is in the 60th · 5,383 models
Engine Displacement
= Effectively tied4066M128 ci
4066R128 ci
Median Utility Tractor183 ci
4066M is in the 30th percentile; 4066R is in the 30th · 5,580 models
Cylinders
= Effectively tied4066M4
4066R4
Median Utility Tractor4
4066M is in the 50th percentile; 4066R is in the 50th · 5,720 models
Forward Gears
= Effectively tied4066M12
4066R12
Median Utility Tractor12
4066M is in the 50th percentile; 4066R is in the 50th · 4,941 models
4066M (A)4066R (B)Median Utility Tractor
Full comparison
Every spec, side by side
General Information
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Manufacturer | John Deere | John Deere | Same |
| Model | 4066M | 4066R | — |
| Category | Utility | Utility | Same |
Engine
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Manufacturer | Yanmar | Yanmar | Same |
| Model | 4TNV86CHT | 4TNV86CHT | Same |
| Power Output | 65.8hp | 65.8hp | Same |
| Rated RPM | 2,600RPM | 2,600RPM | Same |
| Cylinders | 4 | 4 | Same |
| Displacement | 128ci | 128ci | Same |
| Bore | 3.4in | 3.4in | Same |
| Stroke | 3.5in | 3.5in | Same |
Transmission
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Type | Power shuttle | PowrReverser | — |
Dimensions & Weight
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Length | 130in | 131in | ▲ 4066R+1 in · <1% |
| Height | 100in | 100in | Same |
| Operating Weight | 3,770lb | 3,770lb | Same |
Hydraulics
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| System Type | Open center | Open Center | Same |
| Steering Type | Power | Power | Same |
Power Take-off (PTO)
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Type | Independent | Independent | Same |
| Speed 1 | 540rpm | 540rpm | Same |
Hitch & Towing
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | I | I | Same |
| Hitch Position | Rear | Rear | Same |
| Hitch Capacity | 3,130lb | 3,130lb | Same |
Chassis & Drive
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Chassis Type | 4x4 MFWD 4WD | 4x4 MFWD 4WD | Same |
| Drive Type | MFWD 4WD | 4WD | — |
| Steering Type | Power | Power | Same |
| Brake Type | Hydraulic wet disc | Multi-plate wet disc | — |
Electrical
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
Capacities
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Coolant | 1.6gal | Not recorded | — |
Operator Station
| Spec | John Deere 4066M | John Deere 4066R | Difference |
|---|---|---|---|
| Type | Two-post folding ROPS | Two-post ROPS | — |
Category context
Both models against the field
Engine Power
median 55 hpA · 60th percentile (65.8 hp)B · 60th percentile (65.8 hp)
Engine Displacement
median 183 ciA · 30th percentile (128 ci)B · 30th percentile (128 ci)
Cylinders
median 4A · 50th percentile (4)B · 50th percentile (4)
Forward Gears
median 12A · 50th percentile (12)B · 50th percentile (12)
Operating Weight
median 5,303 lbA · 33rd percentile (3,770 lb)B · 33rd percentile (3,770 lb)
A · 4066MB · 4066RMedian Utility Tractor