John Deere 4066R

The John Deere 4066R is a tractor produced by John Deere. It is equipped with a 127.5 ci 2.1 L engine. The rated power output is 65.0 hp 48.5 kW. Transmission: eHydro. Operating weight: 1435 lbs 650 kg.

Overview

	2014 - 4R SeriesCompact Utility tractor
2014 -
4R Series
Compact Utility tractor

Production
Manufacturer	John Deere
Compact Utility tractor
Built in Augusta, Georgia, USA
Original price	$51,662 (2025 hydro ROPS )
	$62,984 (2025 hydro Cab )

Variants
4066M	base model
4066R	deluxe model

John Deere 4066R Engine
Yanmar 2.1L 4-cyl diesel
Engine details ...

John Deere 4066R Power
Engine (gross)	65.0 hp 48.5 kW
Gear PTO (claimed)	54.2 hp*Sales brochure lists 58 hp. 40.4 kW
Hydro PTO (claimed)	51.9 hp*Sales brochure lists 57 hp. 38.7 kW

Mechanical
Four-wheel drive
Final drives	planetary
Differential lock	mechanical rear
Power steering
Hydraulic wet disc brakes
Two-post folding ROPS. Cab optional with air-conditioning.

Capacity
ROPS Fuel	13 gal 49.2 L
Cab Fuel	13.8 gal 52.2 L
Hydraulic system	12.5 gal 47.3 L

Hydraulics
Type	open center
Capacity	12.5 gal 47.3 L
Pressure	2500 psi 172.4 bar
Valves	3 to 5
Pump flow	10.2 gpm 38.6 lpm
Total flow	15.9 gpm 60.2 lpm
Steering flow	5.7 gpm 21.6 lpm

Tractor hitch
Rear Type	I
Control	position control
Rear lift (at ends)	3130 lbs 1419 kg
Rear lift (at 24"/610mm)	2500 lbs 1134 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540 (1.375)
Engine RPM	540@2600
	540E@1750

Dimensions & Tires
Wheelbase	73 inches 185 cm
Weight	3770 to 4675 pounds
Front tire	8.00-16
Rear tire	13.6-28
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	75
Battery CCA	770
Battery volts	12

References
4 Family published in 2015, by John Deere
4 Family published in 2017, by John Deere
4 Series published in 2020, by John Deere
4 Series published in 2023, by John Deere
Operator's Manual 4 Series (OMTR11452) published in 2019*
Operator's Manual 4 Series (OMTR130411) published in 2023*
Compact Utility Tractors published in 2016, by John Deere
*Publication contains known errors.

Engine

Engine Detail — 127.5 ci / 2.1 L Diesel

Manufacturer	Yanmar 4TNV86
Configuration	turbocharged diesel, 4-cylinder, liquid-cooled inline
Displacement	127.5 ci 2.1 L
Bore/Stroke	3.39x3.54 inches 86 x 90 mm
Emissions	Tier IV
Emission control	diesel particulate filter (DPF)
Rated Power (gross)	65.0 hp 48.5 kW
Fuel system	high-pressure common rail
Compression	19.1:1
Rated RPM	2600
Idle RPM	950-2750
Torque	153 lb-ft 207.5 Nm
Torque RPM	1690
Starter	electric
Starter volts	12
Oil capacity	5.6 qts 5.3 L

John Deere 4066R Engine
Image courtesy of Jeff Zuress

Transmission

Transmission options
12-speed power shuttle
hydrostatic

Transmission — PowrReverser

Transmission	PowrReverser
Type	power shuttle
Gears	12 forward and reverse
Clutch	wet disc

Transmission — eHydro

Transmission	eHydro
Type	hydrostatic
Gears	infinite forward and reverse (3-range)

Dimensions

John Deere 4066R Tires
Ag front	8.00-16
Ag rear	13.6-28
Lawn/turf front	27x10.50-15
Lawn/turf rear	44x18-20

Dimensions
Wheelbase	73 inches 185 cm
Length	130.6 inches 331 cm
Height (ROPS)	100.2 inches 254 cm
Height (cab)	97.4 inches 247 cm
4WD ROPS Weight	3770 lbs 1710 kg
4WD Cab Weight	4675 lbs 2120 kg
Clearance (front axle)	13.8 inches 35 cm
Front tread	53.6 inches 136 cm
Rear tread	59.9 inches 152 cm

Attachments

Attachment overview
John Deere D170 loader
John Deere H180 loader
John Deere 440R loader
Backhoe

John Deere 485A Backhoe
Backhoe type	John Deere 485A Backhoe
Weight	1435 lbs 650 kg
Transport height	92 inches 233 cm
Bucket width	16 inches 40 cm
2-Foot flat digging depth	102 inches 259 cm
Reach from pivot	140 inches 355 cm
Loading height	79 inches 200 cm
Bucket Rotation	180°
Swing Arc	170°
Bucket force	3752 lbs 1701 kg
Dipperstick force	2449 lbs 1110 kg