John Deere 4066M Heavy Duty Tractor Specs

Category: Tractors ➔
Manufacturer: John Deere ➔
Model: 4066M Heavy Duty ➔

Additional Information

John Deere 4066M Heavy Duty Tractor Additional Information specifications
Country of Manufacture	Saltillo, Mexico — Starting 2026 Model Year
Date Collected	2023_01_06T00:00:00.0000000 — Starting 2026 Model Year

Capacities

John Deere 4066M Heavy Duty Tractor Capacities specifications
Fuel Tank Capacity	29.6 (PowrReverser™) / 38.0 (PowrQuad™ PLUS/Powr8™) gal. — Starting 2026 Model Year

Drawbar

John Deere 4066M Heavy Duty Tractor Drawbar specifications
Drawbar Category	Category 2 — Starting 2026 Model Year
Maximum Vertical Load	Road/field use (250-mm extended): 1450 kg / 3197 lb; Field use (350-mm extended): 1200 kg / 2646 lb; Field use (400-mm extended): 1200 kg / 2646 lb — Starting 2026 Model Year

Electrical System

John Deere 4066M Heavy Duty Tractor Electrical System specifications
Alternator Capacity	90 amp — Starting 2026 Model Year
Driving Lights	Standard: Halogen; Optional: LED — Starting 2026 Model Year
Working Lights	Standard: Halogen; Optional: LED — Starting 2026 Model Year

Engine

John Deere 4066M Heavy Duty Tractor Engine specifications
Aftertreatment Type	ERG/DOC/SCR — Starting 2026 Model Year
Aspiration	Turbocharged — Starting 2026 Model Year
Cylinder Liners	Wet sleeved — Starting 2026 Model Year
Emissions Certifications	Final Tier 4 — Starting 2026 Model Year
Engine Make	John Deere PowerTech™ 4045 PWL — Starting 2026 Model Year
Maximum Engine Torque	500 Nm / 369 lb-ft — Starting 2026 Model Year
Rated Engine Power	65 hp: (SAE J1995) — Starting 2026 Model Year
Rated Engine Speed	2600 rpm — Starting 2026 Model Year

Front Axle

John Deere 4066M Heavy Duty Tractor Front Axle specifications
Front Axle Type	Mechanical Front Wheel Drive (MFWD) — Starting 2026 Model Year

Hydraulics

John Deere 4066M Heavy Duty Tractor Hydraulics specifications
Available Flow at a Single Rear SCV	70 L/min / 18.4 gpm; Optional: 100 L/min / 26.4 gpm — Starting 2026 Model Year
Hydraulic System Type	Standard: Open center; Optional: Pressure-and-flow compensated (PFC) system — Starting 2026 Model Year
Pump Rated Output	Standard: 94 L/min / 24.7 gpm; Optional: 117 L/min / 31 gpm — Starting 2026 Model Year
SCV Control	Mechanical — Starting 2026 Model Year

Key Specs

John Deere 4066M Heavy Duty Tractor Key Specs specifications
Engine Make	John Deere PowerTech™ 4045 PWL — Starting 2026 Model Year
Pump Rated Output	Standard: 94 L/min / 24.7 gpm; Optional: 117 L/min / 31 gpm — Starting 2026 Model Year
Rated Engine Power	65 hp: (SAE J1995) — Starting 2026 Model Year
Rear Hitch Category (SAE Designation)	Category 2; convertible to 1 — Starting 2026 Model Year
Transmission Type	PowrReverser™ 16F/16R; Optional: PowrQuad™ PLUS 16F/16R, Powr8™ 32F/16R — Starting 2026 Model Year

Machine Configuration

John Deere 4066M Heavy Duty Tractor Machine Configuration specifications
Wheel or Track Configuration	Wheel — Starting 2026 Model Year

Operator Station

John Deere 4066M Heavy Duty Tractor Operator Station specifications
Gearshift Location	Floor — Starting 2026 Model Year
Instructional Seat	Not Available — Starting 2026 Model Year
Primary Display	Automotive style light-emitting LED instrument cluster — Starting 2026 Model Year
Radio	Optional — Starting 2026 Model Year
ROPS Type	Foldable, two-post — Starting 2026 Model Year
Seat Suspension	Low Profile — Starting 2026 Model Year

Rear Axle

John Deere 4066M Heavy Duty Tractor Rear Axle specifications
Differential Controls	Electrohydraulic — Starting 2026 Model Year
Final Drive	Inboard planetary — Starting 2026 Model Year
Rear Axle Type	Flange — Starting 2026 Model Year
Rear Differential Lock	Electrohydraulic — Starting 2026 Model Year

Rear Hitch

John Deere 4066M Heavy Duty Tractor Rear Hitch specifications
Draft Control Sensing	Mechanical or Electrohydraulic — Starting 2026 Model Year
Rear Hitch Category (SAE Designation)	Category 2; convertible to 1 — Starting 2026 Model Year
Sensing Type	Top link — Starting 2026 Model Year

Rear Power Take-Off (PTO)

John Deere 4066M Heavy Duty Tractor Rear Power Take-Off (PTO) specifications
Engagement Method	Electrohydraulic — Starting 2026 Model Year
PTO Category	540/540E; Optional: 540/540E/1000 — Starting 2026 Model Year

Steering & Brakes

John Deere 4066M Heavy Duty Tractor Steering & Brakes specifications
Primary Brakes	Hydraulic wet disc — Starting 2026 Model Year

Technology Integration

John Deere 4066M Heavy Duty Tractor Technology Integration specifications
Connectivity	JDLink™ Modem — Starting 2026 Model Year
Guidance	Optional: AutoTrac™ with AutoTrac Basic — Starting 2026 Model Year
ISOBUS Ready	Optional for cab models — Starting 2026 Model Year
Remote Diagnostics	Yes — Starting 2026 Model Year

Tires

John Deere 4066M Heavy Duty Tractor Tires specifications
Rear Tires Size	19.5L–24 in. 10PR R4 Bias — Starting 2026 Model Year
Wheel Tread Range	Front: 1299–1997 mm / 51.1–78.6 in — Starting 2026 Model Year

Transmission

John Deere 4066M Heavy Duty Tractor Transmission specifications
Clutch	Wet — Starting 2026 Model Year
Creeper	Cab: Powr8™ 32F/16R with creeper — Starting 2026 Model Year
Reverser	Yes — Starting 2026 Model Year
Transmission Type	PowrReverser™ 16F/16R; Optional: PowrQuad™ PLUS 16F/16R, Powr8™ 32F/16R — Starting 2026 Model Year

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