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John Deere 4066M HEAVY DUTY
Compact Tractor
Take on demanding work with the 4066M Heavy Duty Compact Utility Tractor. You have the muscle to power through heavy mowing, bale handling, and loader-intensive jobs. Built for farmers and commercial operators who need dependable performance when conditions get tough.
Product Features:
- Factory-Installed 440R Quick Park™ Loader Mounting System Included
- Turbocharged Diesel Engine
- eHydrostatic Transmission
- Standard Mid and Rear Hydraulics
Features
Take on demanding work with the 4066M Heavy Duty Compact Utility Tractor. You have the muscle to power through heavy mowing, bale handling, and loader-intensive jobs. Built for farmers and commercial operators who need dependable performance when conditions get tough.
Factory-Installed 440R Quick Park™ Loader Mounting System Included
Turbocharged Diesel Engine
eHydrostatic Transmission
Standard Mid and Rear Hydraulics
Benefits
Category 1 and 2 Implement Compatibility
The 4M Heavy-Duty Tractor’s 3-point hitch system offers high implement versatility with Category 1 and 2 compatibility, telescoping draft links, and a lift capacity of up to 3130 lb (1420 kg) at the lift link ends. Its position control lever, rate-of-drop valve, and adjustable stabilizers ensure precise, consistent implement depth and easy attachment without tools.
Excellent Visibility Provided by Standard Lighting Equipment
Standard lighting equipment includes wide-angle halogen headlights with premium automotive-style bezels, amber flashing warning lights, and fender-mounted working lights, all compliant with ASAE S279 standards.
Maximize Productivity With an eHydro™ Transmission
The eHydro™ transmission offers seamless operation with an infinitely variable ground speed, no clutching for direction changes, and integrated Twin Touch™ foot controls for quick and easy forward/reverse movement. It maximizes tractor productivity, reduces powertrain shock loads, and enhances operator comfort by providing high torque for startup.
Specifications
| Rear Axle Type | Flange |
| Rear Differential Lock | Electrohydraulic |
| Final Drive | Inboard planetary |
| Differential Controls | Electrohydraulic |
| Available Flow at a Single Rear SCV | 70 L/min / 18.4 gpm; Optional: 100 L/min / 26.4 gpm |
| SCV Control | Mechanical |
| Pump Rated Output | Standard: 94 L/min / 24.7 gpm; Optional: 117 L/min / 31 gpm |
| Hydraulic System Type | Standard: Open center; Optional: Pressure-and-flow compensated (PFC) system |
| Alternator Capacity | 90 amp |
| Driving Lights | Standard: Halogen; Optional: LED |
| Working Lights | Standard: Halogen; Optional: LED |
| Rear Hitch Category (SAE Designation) | Category 2; convertible to 1 |
| Sensing Type | Top link |
| Draft Control Sensing | Mechanical or Electrohydraulic |
| PTO Category | 540/540E; Optional: 540/540E/1000 |
| Engagement Method | Electrohydraulic |
| Rated Engine Speed | 2600 rpm |
| Maximum Engine Torque | 500 Nm / 369 lb-ft |
| Engine Make | John Deere PowerTech™ 4045 PWL |
| Rated Engine Power | 66 PS |
| Aftertreatment Type | ERG/DOC/SCR |
| Emissions Certifications | Final Tier 4 |
| Aspiration | Turbocharged |
| Rated Engine Power | 49 kW |
| Rated Engine Power |
65 hp
(SAE J1995) |
| Cylinder Liners | Wet sleeved |
| Fuel Tank Capacity | 112 (PowrReverser™) / 144 (PowrQuad™ PLUS/Powr8™) L |
| Fuel Tank Capacity | 29.6 (PowrReverser™) / 38.0 (PowrQuad™ PLUS/Powr8™) gal. |
| Instructional Seat | Not Available |
| Gearshift Location | Floor |
| Primary Display | Automotive style light-emitting LED instrument cluster |
| Seat Suspension | Low Profile |
| Radio | Optional |
| ROPS Type | Foldable, two-post |
| Front Axle Type | Mechanical Front Wheel Drive (MFWD) |
| Remote Diagnostics | Yes |
| Connectivity | JDLink™ Modem |
| Guidance | Optional: AutoTrac™ with AutoTrac Basic |
| ISOBUS Ready | Optional for cab models |
| Drawbar Category | Category 2 |
| 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 |
| Clutch | Wet |
| Transmission Type | PowrReverser™ 16F/16R; Optional: PowrQuad™ PLUS 16F/16R, Powr8™ 32F/16R |
| Reverser | Yes |
| Creeper | Cab: Powr8™ 32F/16R with creeper |
| Date Collected | 2023_01_06T00:00:00.0000000 |
| Country of Manufacture | Saltillo, Mexico |
| Wheel Tread Range | Front: 1299–1997 mm / 51.1–78.6 in |
| Rear Tires Size | 19.5L–24 in. 10PR R4 Bias |
| Wheel or Track Configuration | Wheel |
| Primary Brakes | Hydraulic wet disc |
Offers
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Offer Available: 22 June, 2026 through 02 November, 2026
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1.9% APR fixed rate for 84 months
on select new John Deere Equipment
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$5,500 off with cash purchase
on select new John Deere Equipment
Offer Available: 22 June, 2026 through 02 November, 2026
Add implements. Save up to $400
on new John Deere Sub-Compact, Compact and 5E 3-Cylinder Utility Tractors
Offer Available: 22 June, 2026 through 02 November, 2026
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