Quick answer:
The John Deere 7R 310 tractor has 341 hp engine horsepower and 310 hp PTO horsepower.
Engine horsepower341 hp
PTO horsepower310 hp
Drawbar horsepower246.1 hp
Torque738 lb-ft
Operating weight11,400 lb
John Deere 7R 310 Horsepower Details
| Engine horsepower | 341 hp |
|---|---|
| PTO horsepower | 310 hp |
| Drawbar horsepower | 246.1 hp |
| Engine torque | 738 lb-ft |
| Engine displacement | 9 L |
| Engine model | turbocharged |
| Operating weight | 11,400 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 7R 310 Extra Horsepower Notes
| Horsepower note | With PTO power at roughly 90.9% of engine horsepower, the John Deere 7R 310 keeps most of its rated power available for PTO work. |
|---|---|
| PTO note | Use the John Deere 7R 310’s 310 hp PTO rating when sizing implements; the 341 hp engine rating is not the number the implement actually receives. |
| Drawbar note | The John Deere 7R 310’s 246.1 hp drawbar rating is the better number for ground-pulling work than the 341 hp engine rating. |
| Power-to-weight note | The John Deere 7R 310’s weight-to-power figure is about 33.4 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 | The John Deere 7R 310 uses engine model turbocharged, 9 L displacement, which helps explain where its horsepower rating comes from. |
| Torque / RPM note | The John Deere 7R 310’s 738 lb-ft torque rating matters for lugging through heavier field work, especially when paired with the right ballast and gearing. |
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.







