Quick answer:
The John Deere 8R 370 tractor has 370 hp engine horsepower and 310 hp PTO horsepower.
Engine horsepower370 hp
PTO horsepower310 hp
Drawbar horsepower284.9 hp
Torque1,450 lb-ft
Operating weight29,000 lb
John Deere 8R 370 Horsepower Details
| Engine horsepower | 370 hp |
|---|---|
| PTO horsepower | 310 hp |
| Drawbar horsepower | 284.9 hp |
| Engine torque | 1,450 lb-ft |
| Engine displacement | 9 L |
| Engine cylinders | 6 cylinders |
| Engine model | turbocharged |
| Operating weight | 29,000 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 8R 370 Extra Horsepower Notes
| Horsepower note | With PTO power at roughly 83.8% of engine horsepower, the John Deere 8R 370 keeps most of its rated power available for PTO work. |
|---|---|
| PTO note | The John Deere 8R 370’s PTO output is 310 hp, about 83.8% of its 370 hp engine rating, so PTO implement choice should be based on the PTO number. |
| Drawbar note | The John Deere 8R 370’s 284.9 hp drawbar rating is the better number for ground-pulling work than the 370 hp engine rating. |
| Power-to-weight note | Using 29,000 lb operating weight and 370 hp engine power, the John Deere 8R 370 comes out at roughly 78.4 lb per engine horsepower, meaning it is light for its power, so traction and ballast can become the limiting factor before engine power. |
| Engine note | Engine details for the John Deere 8R 370 come together as engine model turbocharged, 9 L displacement, 6 cylinders. |
| Torque / RPM note | The John Deere 8R 370 torque spec is 1,450 lb-ft, which matters when the tractor has to recover under load. |
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.







