John Deere 4066M Heavy Duty vs John Deere 4066R
Every published spec for both machines, side by side. The verdict below is computed straight from the spec sheets, not opinion.
Across 8 measurable specs, the John Deere 4066R leads 1 categories to 0 (7 tied). Machine pages: John Deere 4066M Heavy Duty and John Deere 4066R.
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Category Verdict
| Spec | John Deere 4066M Heavy Duty | John Deere 4066R |
|---|---|---|
| Engine HP (hp) | 65 hp | 65 hp |
| PTO HP (hp) | 51.9 hp | 51.9 hp |
| Loader Lift (lb) | 2,396 lb | 2,396 lb |
| 3-Pt Lift (24 in) (lb) | 2,500 lb | 2,500 lb |
| Lift Height (in) | 112.1 in | 112.1 in |
| Breakout Force (lbf) | 3,853 lbf | 3,853 lbf |
| Hydraulic Flow (gpm) | 11.2 gpm | ▲ 17.4 gpm |
| Travel Speed (mph) | 18.6 mph | 18.6 mph |
Full Spec Sheet
Every published spec, side by side, including the details the graphs above don't chart.
| Spec | John Deere4066M Heavy Duty | John Deere4066R |
|---|
| PTO Power | 51.9 hp | 51.9 hp |
|---|---|---|
| Alternator | 75 A, 12 V | 75 A, 12 V |
| Air Cleaner | Dual element | Dual element (dry type with safety element) |
| Engine Type | Diesel | Diesel |
| Fuel System | High-pressure common rail direct injection | High-pressure common rail direct injection |
| Displacement | 127.6 in³ | 127.6 in³ |
| No. of Cylinders | 4 | 4 |
| Rated Engine Speed | 2600 rpm | 2600 rpm |
| Cooling System Type | Liquid | Liquid (water pump) |
| Engine Manufacturer | Yanmar | Yanmar |
| Engine Power (Gross) | 65 hp @ 600 rpm | 65 hp @ 600 rpm |
| Engine Emissions Constraints | Tier 4 | Tier 4 |
John Deere 4066M Heavy Duty vs John Deere 4066R: Quick Answers
- Which has more horsepower, the John Deere 4066M Heavy Duty or the John Deere 4066R?
- They are effectively tied: both machines are rated at 65 hp hp for engine hp.
- Which has more PTO horsepower, the John Deere 4066M Heavy Duty or the John Deere 4066R?
- They are effectively tied: both machines are rated at 51.9 hp hp for pto hp.
- Which has more loader lift capacity, the John Deere 4066M Heavy Duty or the John Deere 4066R?
- They are effectively tied: both machines are rated at 2,396 lb lb for loader lift.
- Which has more three-point hitch lift capacity, the John Deere 4066M Heavy Duty or the John Deere 4066R?
- They are effectively tied: both machines are rated at 2,500 lb lb for 3-pt lift (24 in).