John Deere 4066M Heavy Duty vs John Deere 4075R
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 4075R leads 4 categories to 0 (4 tied). Machine pages: John Deere 4066M Heavy Duty and John Deere 4075R.
Want a third or fourth machine in the mix? Open this matchup in the comparison tool and add up to two more.
Category Verdict
| Spec | John Deere 4066M Heavy Duty | John Deere 4075R |
|---|---|---|
| Engine HP (hp) | 65.9 hp | ▲ 74.3 hp |
| PTO HP (hp) | 51.9 hp | ▲ 60 hp |
| Weight (lb) | 4,255 lb | n/a |
| Loader Lift (lb) | 2,539 lb | 2,539 lb |
| 3-Pt Lift (24 in) (lb) | 2,500 lb | 2,500 lb |
| Lift Height (in) | 110 in | 110 in |
| Breakout Force (lbf) | 3,853 lbf | ▲ 4,027 lbf |
| Hydraulic Flow (gpm) | 15.9 gpm | 15.9 gpm |
| Travel Speed (mph) | 18.6 mph | ▲ 18.7 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 Deere4075R |
|---|
| Engine Manufacturer | Yanmar | Yanmar |
|---|---|---|
| Engine Model | 4TNV86CHT-MJT | 4TNV86CHT-MJT |
| Engine Type | Turbocharged 4-cylinder Diesel | Turbocharged 4-cylinder Diesel |
| No. of Cylinders | 4 | 4 |
| Displacement | 127.6 in³ | 127.6 in³ |
| Rated Engine Speed | 2600 rpm | 2600 rpm |
| Engine Power (Gross) | 65.9 hp | 74.3 hp |
| PTO Power | 51.9 hp | 60 hp |
| Engine Emissions Constraints | Tier 4 | Tier 4 |
| Cooling System Type | Liquid | Liquid-cooled |
| Air Cleaner | Dual element | Dry type with safety element |
| Fuel System | High-pressure common rail direct injection | High pressure common-rail direct injection |
| Alternator | 75 A, 12 V | 75 A, 12 V |
John Deere 4066M Heavy Duty vs John Deere 4075R: Quick Answers
- Which has more horsepower, the John Deere 4066M Heavy Duty or the John Deere 4075R?
- The John Deere 4075R leads on engine hp at 74.3 hp hp, compared to 65.9 hp hp for the John Deere 4066M Heavy Duty.
- Which has more PTO horsepower, the John Deere 4066M Heavy Duty or the John Deere 4075R?
- The John Deere 4075R leads on pto hp at 60 hp hp, compared to 51.9 hp hp for the John Deere 4066M Heavy Duty.
- Which has more loader lift capacity, the John Deere 4066M Heavy Duty or the John Deere 4075R?
- They are effectively tied: both machines are rated at 2,539 lb lb for loader lift.
- Which has more three-point hitch lift capacity, the John Deere 4066M Heavy Duty or the John Deere 4075R?
- They are effectively tied: both machines are rated at 2,500 lb lb for 3-pt lift (24 in).