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John Deere 4066M
4066M
Compact Tractors
Overview:
Invest in a tractor that works as hard as you do. The 4066M Compact Utility Tractor delivers powerful 4WD performance with improved efficiency, helping you tackle demanding property work.
- Turbocharged Diesel Engine
- PowrReverser™ or eHydrostatic Transmission Options
- Standard 4-Wheel-Drive
- Category 1, 3-Point Hitch Compatible With iMatch™ Quick-Hitch
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Features
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.
PowrReverser™ Transmission Allows for Clutchless Directional Changes

The 12/12 PowrReverser™ transmission, available on 4M and 4R Tractors, enables clutchless forward-to-reverse shifting using a single lever, thanks to its hydraulically actuated wet clutch system. It features 12 forward and 12 reverse speeds, dual wet-disk clutches for durability, and is especially effective for loader work due to its fast shuttle shift and quiet, helical-cut gears.
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.
Specifications
Engine
| 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 |
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 (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 | PowrReverser - Left-hand side |
Transmission
| Clutch | Wet |
| Cruise Control | Optional |
Contact Us
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325 Walt Messick Road
Harrington, Delaware 19952
Phone: (302) 398-3729
Toll Free: (800) 237-1272