Quick answer:
The John Deere 9RX 770 tractor has 335 hp engine horsepower and 335 hp PTO horsepower.
Engine horsepower335 hp
PTO horsepower335 hp
Rated RPM1,400 rpm
Operating weight36,000 lb
John Deere 9RX 770 Horsepower Details
| Engine horsepower | 335 hp |
|---|---|
| PTO horsepower | 335 hp |
| Rated engine RPM | 1,400 rpm |
| Engine displacement | 18 L |
| Engine model | the JD18 |
| Operating weight | 36,000 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Operating weight comparison
John Deere 9RX 770 Extra Horsepower Notes
| Horsepower note | The John Deere 9RX 770 lists engine horsepower and PTO horsepower very close together at about 335 hp. |
|---|---|
| PTO note | The John Deere 9RX 770’s PTO output is 335 hp, about 100% of its 335 hp engine rating, so PTO implement choice should be based on the PTO number. |
| Power-to-weight note | Using 36,000 lb operating weight and 335 hp engine power, the John Deere 9RX 770 comes out at roughly 107.5 lb per engine horsepower, meaning it is balanced enough that both traction and horsepower matter. |
| Engine note | The John Deere 9RX 770’s engine setup is engine model the JD18, 18 L displacement, rated at 1,400 rpm, matching its high-horsepower horsepower range. |
| Torque / RPM note | The John Deere 9RX 770 lists 1,400 rpm as the rated engine RPM, which is the speed attached to its power rating. |
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.







