This page provides a detailed comparison of the specifications for the John Deere 4066M and the John Deere 8R 250. The specifications are categorized into four main sections: Engine, Transmission, Dimensions, and Miscellaneous. By comparing these two tractors side by side, you can easily identify the similarities and differences between them and determine which one best suits your needs.
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John Deere 4066M
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John Deere 8R 250
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| Images | No images available | |
| Engine | ||
| Engine - Manufacturer | Yanmar | John Deere |
| Engine - Model | 4TNV86CHT | RG6090U094226 |
| Engine - Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine - Cylinder Orientation | - | - |
| Engine - Valve Configuration | - | - |
| Engine - Fuel Type | Diesel | Diesel |
| Engine - Induction Type | - | - |
| Engine - Cylinders | 4 | 6 |
| Engine - Displacement (ci) | 127.5 | 548 |
| Engine - Bore (in) | 3.39 | 4.66 |
| Engine - Stroke (in) | - | - |
| Engine - Rated RPM | 2600 | - |
| Engine - Power Output (hp) | 65.8 | 255.36 (Maximum at 1700 rpm), 225.37 (Rated) |
| Transmission | ||
| Transmission - Type | Power shuttle or Hydrostatic | Full Power Shift, e23 Transmission |
| Transmission - Forward Gears | 12 (if Power shuttle transmission) | 23 |
| Transmission - Reverse Gears | - | - |
| Transmission - Total Gears | Unknown (A total can only be provided if referring to the Power shuttle transmission setup) | 34 |
| Dimensions | ||
| Length (in) | 130.3 | 252.8 |
| Width (in) | - | 60.0 to 127.9 (adjustable) |
| Height (in) | 100 | 137.8 |
| Operating Weight (lb) | 3770 | 27405 |
| Miscellaneous | ||
| Chassis | 4x4 MFWD 4WD | 4x4 MFWD 4WD |
| Drive Type | MFWD 4WD | 4WD |
| Steering Type | Power | Power |
| Coolant Capacity (qts) | 6.3 | - |
| Front Tire Diameter (in) | - | - |
| Front Tire Width (in) | - | 420 |
| Rear Tire Diameter (in) | - | 50 |
| Rear Tire Width (in) | - | 480 |
| Front/Rear Rim Diameter (in) | - | Unknown |
| Tire Type | - | Agricultural |
| Manufacture - End Year | - | - |
| Hitch Type | Three-Point Hitch | Three-Point Hitch Category III/IIIN |
| Hitch Category | - | - |
| Hitch Position | Rear | Rear |
| Hitch Capacity (lb) | 3130 | 20254 |
| Operator Station Type | Two-post folding ROPS | Cab |
| Starter Type | Electric | Electric |
| PTO Type | Independent | - |
| PTO Speed 1 (rpm) | 540 | - |
| PTO Speed 2 (rpm) | - | - |
| PTO Speed 3 (rpm) | - | 1000 |
| Brake Type | Hydraulic wet disc | - |
| Hydraulic System Type | Open center | Closed-Center Pressure Flow Compensated |
