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John Deere 4066M Heavy Duty
Specifications
Manufacturer
John Deere
Model
4066M Heavy Duty
Year
2026
Category
Tractors
Subcategory
Compact Tractors
Family
EYDXL2.09HDA, FYDXL2.09HDA, GYDXL2.09HDA
Manufacturer
Yanmar®
Engine model
4TNV86CT-MJT
Engine power (gross)SAE J1995 rated power
48.5 kW 65 hp, 48.5 kW 65 hp
Power take-off (PTO) power
38.7 kW, 51.9 hp
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 cylinders, 2.091 L, 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 with electronic restriction indicator
Engine torque at rated speed
178 Nm, 131.3 lb-ft
Fuel tank capacity
56.9 L, 15 US gal
Type
High pressure common rail direct injection
Standard transmission; forward/reverse
eHydro transmission
Transmission gear ranges
eHydro - Infinitely-variable three range
Final drive
Planetary
Brakes
Multi-plate wet disc
Steering
Hydrostatic power steering
Clutch, wet/dry
Wet
Axle capacity, Front
1600 kg, 3528 lb
Axle capacity, Rear
2400 kg, 5292 lb
Creeper
SpeedMatch™ standard
Type, Two
Category 1/Category 2
Lift capacity, 24-in behind link arms
1135 kg, 2500 lb
Standard
Independent 540 rpm at 2600 rpm
Control
Independent
Clutch
Wet disc
Crankcase with filter
5.3 L, 1.4 qt
Transmission and hydraulic system
47.3 L, 12.5 gal
Type, Three
Planetary
Platform - flat/straddle
Flat
Approximate shipping weight (open-station; cab) Open station
1950 kg, 4290 lb
Front
R4 Industrial 31.5x13-16.5
Rear
R4 Industrial 16.9-24, R4 Industrial 19.5L-24
Rear tread spacing
1375 mm, 54.1 in, 1495 mm, 58.9 in
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