John Deere 4066R vs John Deere 4520
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 6 categories to 1 (1 tied). Machine pages: John Deere 4066R and John Deere 4520.
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Category Verdict
| Spec | John Deere 4066R | John Deere 4520 |
|---|---|---|
| Engine HP (hp) | ▲ 65 hp | 60 hp |
| PTO HP (hp) | ▲ 57 hp | 52 hp |
| Weight (lb) | ▲ 3,770 lb | 3,700 lb |
| Loader Lift (lb) | ▲ 2,539 lb | 2,486 lb |
| 3-Pt Lift (24 in) (lb) | 2,500 lb | 2,500 lb |
| Lift Height (in) | ▲ 112 in | 109 in |
| Breakout Force (lbf) | n/a | 3,934 lbf |
| Hydraulic Flow (gpm) | 15.9 gpm | ▲ 17.1 gpm |
| Travel Speed (mph) | ▲ 18.6 mph | 17.3 mph |
Full Spec Sheet
Every published spec, side by side, including the details the graphs above don't chart.
| Spec | John Deere4066R | John Deere4520 |
|---|
| Engine Manufacturer | Yanmar | John Deere |
|---|---|---|
| Engine Model | 4TNV86CHT-MJT | PowerTech 4024T |
| Engine Type | Turbocharged 4-cylinder Diesel | 4-cylinder, turbocharged, direct injection diesel |
| No. of Cylinders | 4 | 4 |
| Displacement | 127.6 in³ | 149 in³ |
| Rated Engine Speed | 2600 rpm | 2400 rpm |
| Engine Power (Gross) | 65 hp | 60 hp |
| PTO Power | 57 hp | PowrReverser: 52 hp; eHydro: 50 hp |
| Engine Emissions Constraints | Tier 4 | Not Published |
| Cooling System Type | Liquid-cooled | Liquid-cooled |
| Air Cleaner | Dual element (dry type with safety element) | Dry type with safety element |
| Fuel System | High-pressure common rail direct injection | Direct injection, mechanical fuel pump |
| Alternator | 75 A, 12 V | 70 A |
John Deere 4066R vs John Deere 4520: Quick Answers
- Which has more horsepower, the John Deere 4066R or the John Deere 4520?
- The John Deere 4066R leads on engine hp at 65 hp hp, compared to 60 hp hp for the John Deere 4520.
- Which has more PTO horsepower, the John Deere 4066R or the John Deere 4520?
- The John Deere 4066R leads on pto hp at 57 hp hp, compared to 52 hp hp for the John Deere 4520.
- Which is heavier, the John Deere 4066R or the John Deere 4520?
- The John Deere 4066R leads on weight at 3,770 lb lb, compared to 3,700 lb lb for the John Deere 4520.
- Which has more loader lift capacity, the John Deere 4066R or the John Deere 4520?
- The John Deere 4066R leads on loader lift at 2,539 lb lb, compared to 2,486 lb lb for the John Deere 4520.
- Which has more three-point hitch lift capacity, the John Deere 4066R or the John Deere 4520?
- They are effectively tied: both machines are rated at 2,500 lb lb for 3-pt lift (24 in).