Quick answer:
The John Deere 8370R tractor has 407 hp engine horsepower and 313 hp PTO horsepower.
Engine horsepower407 hp
PTO horsepower313 hp
Drawbar horsepower297.7 hp
Rated RPM2,100 rpm
Torque1,277 lb-ft
Operating weight39,683 lb
John Deere 8370R Horsepower Details
| Engine horsepower | 407 hp |
|---|---|
| PTO horsepower | 313 hp |
| Drawbar horsepower | 297.7 hp |
| Rated engine RPM | 2,100 rpm |
| Engine torque | 1,277 lb-ft |
| Engine displacement | 9 L |
| Engine cylinders | 6 cylinders |
| Operating weight | 39,683 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 8370R Extra Horsepower Notes
| Horsepower note | For power comparison, the John Deere 8370R sits at 407 hp engine horsepower with 313 hp available at the PTO. |
|---|---|
| PTO note | The John Deere 8370R’s PTO output is 313 hp, about 76.9% of its 407 hp engine rating, so PTO implement choice should be based on the PTO number. |
| Drawbar note | The John Deere 8370R’s 297.7 hp drawbar rating is the better number for ground-pulling work than the 407 hp engine rating. |
| Power-to-weight note | At 39,683 lb and 407 hp, the John Deere 8370R works out to about 97.5 lb per engine horsepower, making it light for its power, so traction and ballast can become the limiting factor before engine power. |
| Engine note | With 9 L across 6 cylinders, the John Deere 8370R averages about 1.5 L per cylinder. |
| Torque / RPM note | The John Deere 8370R’s 1,277 lb-ft torque rating works with its 2,100 rpm rated speed, so load response depends on both numbers. |
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.







