Quick answer:
The John Deere Z665 tractor has 27 hp engine horsepower and 24 hp PTO horsepower.
Engine horsepower27 hp
PTO horsepower24 hp
Rated RPM3,600 rpm
Operating weight765 lb
John Deere Z665 Horsepower Details
| Engine horsepower | 27 hp |
|---|---|
| PTO horsepower | 24 hp |
| Rated engine RPM | 3,600 rpm |
| Engine displacement | 44.3 cu in |
| Engine cylinders | 2 cylinders |
| Operating weight | 765 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Operating weight comparison
John Deere Z665 Extra Horsepower Notes
| Horsepower note | The John Deere Z665 shows 27 hp at the engine and 24 hp at the PTO, which is a normal drop from engine power to PTO power for a compact utility tractor. |
|---|---|
| PTO note | Use the John Deere Z665’s 24 hp PTO rating when sizing implements; the 27 hp engine rating is not the number the implement actually receives. |
| Power-to-weight note | The John Deere Z665’s weight-to-power figure is about 28.3 lb per engine horsepower; that means it is light for its power, so traction and ballast can become the limiting factor before engine power. |
| Engine note | For engine identification, the John Deere Z665 is listed with 44.3 cu in displacement, 2 cylinders, rated at 3,600 rpm. |
| Torque / RPM note | The John Deere Z665’s horsepower rating is tied to a rated engine speed of 3,600 rpm. |
Official information note
Mistakes do happen. Horsepower, PTO horsepower, drawbar horsepower, weight and engine specs can change by year, market, engine option, cab, transmission and test standard. Please check the operator manual and official deere.com website for official information.







