| Manufacturer | John Deere |
| Price | 38,266(USD) |
| Model | 4066M |
| Equipment Type | Compact Utility Tractors |
| Factory | Augusta, Georgia, USA |
KEY SPECS
| Engine power (gross) | 48.5 kW/65.9 hp/PS at 2600 rpm/SAE J1995 rated power |
| Power take-off (PTO) power | PRT - 40.4 kW/54.2 hp/eHST - 38.7 kW/51.9 hp/Per SAE J1995 |
| Steering hydraulics | 23.5 L/min/6.2 gpm |
| Implement hydraulics | 42.3 L/min/11.2 gpm |
| Hitch type | Category 1 |
| Lift capacity, 24-in. behind link arms | 1135 kg/2500 lb |
| Standard transmission; forward/reverse | PowrReverser transmission (PRT) |
| Cruise control | Optional |
| Approximate shipping weight (open-station; cab) | Open operator station (OOS) - 1710 kg/3770 lb/Cab - 2120 kg/4675 |
| Wheelbase | 185.5 cm/73 in. |
ENGINE
The John Deere 4066M, powered by a Yanmar 4TNV86CHT-MJT engine, delivers 65.9 hp at 2600 rpm, featuring a turbocharged design with high-pressure common rail direct injection, enhancing fuel efficiency and performance while ensuring Final Tier 4 emissions compliance. With a PTO power of 54.2 hp and a torque of 178 Nm, it is suitable for a variety of agricultural tasks, providing adequate power for implements. However, the engine's complexity may pose maintenance challenges, and operators should be mindful of the 56.9 L fuel tank capacity for extended operation without frequent refueling.
| Family | EYDXL2.09HDA/FYDXL2.09HDA/GYDXL2.09HDA |
| Manufacturer | Yanmar |
| Engine model | 4TNV86CHT-MJT |
| Engine power (gross) | 48.5 kW/65.9 hp/PS at 2600 rpm/SAE J1995 rated power |
| Power take-off (PTO) power | PRT - 40.4 kW/54.2 hp/eHST - 38.7 kW/51.9 hp/Per SAE J1995 |
| Rated engine speed | 2600 rpm |
| Type | Diesel |
| Injection pump type | High pressure common rail direct injection |
| Aspiration | Turbocharged and charge air cooled |
| Emissions compliance | Final Tier 4 |
| Cylinders/displacement | 4 / 2.091 L/4 / 127.6 cu in. |
| Number of cylinders | Four |
| Cylinder liners | Cast-in-block |
| Bore and stroke | 86 x 90 mm/3.4 x 3.54 in. |
| Compression ratio | 19.1:1 |
| Lubrication | Pressurized |
| Cooling system | Liquid |
| Air cleaner | Dual element |
| Engine torque at rated speed | 178 Nm/131.3 lb-ft |
| Fuel tank capacity | 56.9 L/15 U.S. gal./Cab - 50 L/13.8 U.S. gal. |
ELECTRICAL
| Battery size | 770 CCA |
| Alternator (12-V) | 75 amp |
| Starter size | 2 kW/2.68 hp |
FUEL SYSTEM
| Type | High pressure common rail direct injection |
TRANSMISSION
The John Deere 4066M tractor offers a robust 12/12 PowrReverser transmission, providing smooth forward/reverse transitions suitable for various agricultural applications, while the optional eHydro transmission enhances drivetrain responsiveness. Its multi-plate wet disc brakes and hydrostatic power steering ensure reliable stopping power and maneuverability, respectively, making it ideal for both heavy-duty tasks and tight working environments. However, the absence of a creeper gear may limit its performance in extremely low-speed applications, and potential users should weigh the need for optional cruise control against the standard features.
| Standard transmission; forward/reverse | 12/12 PowrReverser transmission (PRT) |
| Optional transmission; forward/reverse | eHydro transmission (eHST) |
| Left-hand reverser | PRT only |
| Final drive | Planetary |
| Brakes | Multi-plate wet disc |
| Steering | Hydrostatic power steering |
| Clutch, wet/dry | Wet |
| Clutch disk diameter wet clutch | 129 mm/5.08 in. |
| Axle capacity | Front/1600 kg/3528 lb/Rear/2400 kg/5292 lb/ |
| Creeper | No |
| Cruise control | Optional |
| Differential lock | Yes |
HYDRAULICS
| Type | Open center |
| Pump rated output | Steering/21.5 L/min/5.7 gpm/Implement/38.7 L/min/10.2 gpm/65.86617 L/min/17.4 gpm |
| Pump type | Dual gear |
| Draft control sensing | Position control |
| Remote control valves available | Up to six rear remotes |
3-POINT HITCH
| Type | Category 1 |
| Lift capacity, 24-in. behind link arms | 1135 kg/2500 lb |
POWER TAKE-OFF (PTO)
| Standard | Independent 540 rpm at 2600 rpm |
| Control | Independent |
| Clutch | Wet disc |
FLUID CAPACITIES
| Crankcase with filter | 5.3 L/1.4 qt |
| Transmission and hydraulic system | 47.3 L/12.5 gal. |
FINAL DRIVE
| Type | Planetary |
| Differential lock | Yes |
OPERATOR STATION
| Rollover protective structure | Type/Fixed/Yes |
| Platform - flat/straddle | Flat |
| Gear shift location - console/floor | PRT - Left-hand side |
DIMENSIONS
| Wheelbase | 185.5 cm/73 in. |
| Front axle clearance | 35.1 cm/13.8 in. |
| Turning radius with brakes | 2.8 m/9.19 ft |
| Turning radius without brakes | 3 m/9.84 ft |
| Approximate shipping weight (open-station; cab) | Open operator station (OOS) - 1710 kg/3770 lb/Cab - 2120 kg/4675 lb |
TIRES
The John Deere 4066M tractor features a versatile tire configuration, allowing for optimized performance across different terrains, including farm, turf, and industrial applications. The front and rear tire specifications provide a broad stance, enhancing stability and traction, particularly beneficial in varied soil conditions. However, operators should consider potential challenges with turning radius and maneuverability in tight spaces due to its larger footprint.
| Front | Farm - 8-16/Turf - 27x10.5-15/Industrial - 10-16.5 |
| Rear | Farm - 14.9-24/Turf - 44x18-20 or 22.5LL-16.1/Industrial - 16.9Lx24 |
| Front tread range | 148.1 cm/58.3 in. |
| Rear tread spacing | 137.2 cm/54 in. |