This page provides a detailed comparison of the specifications for the John Deere 4066M and the John Deere 6620 Premium.
| John Deere 4066M | John Deere 6620 Premium | |
|---|---|---|
| Images | ||
| Engine | ||
| Engine Manufacturer | Yanmar | John Deere |
| Engine Model | 4TNV86CHT | 6068T |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Turbocharged | Turbocharged intercooled |
| Engine Cylinders | 4 | 6 |
| Engine Displacement Value | 128 ci (2.1 L) | 414 ci (6.8 L) |
| Engine Rated Rpm | 2600 | 2300 |
| Engine Power Output Value | 66 hp (49.1 kW) | 125 hp (93.2 kW) |
| Transmission | ||
| Transmission Type | Power shuttle | Partial power shift |
| Transmission Forward Gears | 12 | 24 |
| Transmission Reverse Gears | 12 | 24 |
| Dimensions | ||
| Length Value | 130.3 | - |
| Operating Weight Value | 3770 lb (1710 kg) | 11532 lb (5231 kg) |
| Miscellaneous | ||
| Chassis | 4x4 MFWD 4WD | 4x4 MFWD 4WD |
| Drive Type | MFWD 4WD | 4WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | Three-Point Hitch | Rear Type II/IIIN |
| Hitch Category | I | - |
| Hitch Position | Rear | Rear |
| Hitch Capacity Value | 3130 lb (1420 kg) | 18740 lb (8500 kg) |
| Hydraulic System Type | Open center | Closed center load sensing |
| Operator Station Type | Two-post folding ROPS | - |
| Starter Type | Electric | Electric |
