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John Deere 4066R
4066R
Compact Tractors
Overview:
Work more efficiently with the 4066R Compact Utility Tractor. Advanced PTO options, fuel-saving technology, and reduced noise levels help you work longer and more comfortably across hay operations, landscaping, and livestock management. A versatile partner for operators who need one tractor to do it all.
- Turbocharged Diesel Engine
- eHydrostatic Transmission
- Cab or Open Station Configurations
- Premium Features: Hitch Assist, Aux Hitch Control, HST Controls
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Features
Easy-to-Use eHydro™ Transmission

The eHydro™ transmission provides seamless, gradual speed shifts, requiring no clutching. Its Twin Touch™ foot controls allow for quick, precise direction and speed changes, ideal for loader or mower applications, enhancing overall productivity.
Styling Improves Visibility and Serviceability

The bold styling of the 4M and 4R Tractors enhances both appearance and functionality, echoing the design of larger agricultural models. Key features include an aggressively sloped hood for better visibility, hybrid exhaust, and easy access to service points like the battery and engine.
Powerful Yanmar® Diesel Engine Delivers Plenty of Power

The Yanmar® diesel engine has a high-torque reserve that provides plenty of power under heavy load. This 4-cylinder engine features lower levels of exhaust emissions and reduced noise levels. It meets EPA Final Tier 4 (FT4) emission standards. The engine uses the latest technologies to optimize fuel economy and improve control and accuracy.
Specifications
Engine
| Engine Model | 4TNV86CHT-MJT |
| Engine Family | EYDXL2.09HDA, FYDXL2.09HDA, GYDXL2.09HDA |
| Emissions Certifications | Final Tier 4 |
| Displacement | 127 cu in. |
| Aspiration | Turbocharged and charge air cooled |
| Number of Cylinders | 4 |
| Cylinder Liners | Cast-in-block |
| Rated Engine Speed | 2600 rpm |
| Rated Engine Power | 65 hp |
| Rated Engine Power | 49 kW |
| Rated Engine Power | 66 PS |
| Compression Ratio | 19.1:1 |
| Lubrication | Pressurized |
| Cooling System Type | Liquid |
| Fuel Type | Diesel; High pressure common rail direct injection |
| Air Cleaner Type | Dual element with electronic restriction indicator |
Front Axle
| Front Axle Differential Lock | Yes |
Hydraulics
| Hydraulic System Type | Open center |
| Auxiliary Hydraulic Features | Up to six rear remote control valves available |
Rear Axle
| Final Drive | Planetary |
Machine Configuration
| Wheel or Track Configuration | Wheel |
Tires
| Front Tires Size | 8-16 (Farm), 27x10.5-15 or 27x12LL-15 (Turf), 10-16.5 (Industrial) |
Steering & Brakes
| Primary Brakes | Multi-plate wet disc |
Rear Hitch
| Draft Control Sensing | Position control |
Rear Power Take-Off (PTO)
| Economy PTO Speeds | 540 rpm |
| Engagement Method | Independent |
| PTO Clutch | Wet disc |
Electrical System
| Alternator Capacity | 75 amp |
Operator Station
| Gearshift Location | PRT - Left-hand side |
Transmission
| Creeper | SpeedMatch standard |
| Clutch | Wet |
| Cruise Control | Standard |
Contact Us
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325 Walt Messick Road
Harrington, Delaware 19952
Phone: (302) 398-3729
Toll Free: (800) 237-1272