Quick answer:
The John Deere 8R 310 tractor has 310 hp engine horsepower and 257 hp PTO horsepower.
Engine horsepower310 hp
PTO horsepower257 hp
Drawbar horsepower267.9 hp
Rated RPM1,000 rpm
Torque1,070 lb-ft
Operating weight27,800 lb
John Deere 8R 310 Horsepower Details
| Engine horsepower | 310 hp |
|---|---|
| PTO horsepower | 257 hp |
| Drawbar horsepower | 267.9 hp |
| Rated engine RPM | 1,000 rpm |
| Engine torque | 1,070 lb-ft |
| Engine displacement | 9 L |
| Engine model | the John Deere PowerTech 9.0 L engine. This |
| Operating weight | 27,800 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 8R 310 Extra Horsepower Notes
| Horsepower note | For power comparison, the John Deere 8R 310 sits at 310 hp engine horsepower with 257 hp available at the PTO. |
|---|---|
| PTO note | The John Deere 8R 310’s 257 hp PTO rating should be read with its 1,000 rpm rated engine speed when comparing implement requirements. |
| Drawbar note | For plows, ground tools and pull-type loads, the John Deere 8R 310’s 267.9 hp drawbar horsepower says more than engine horsepower alone. |
| Power-to-weight note | Using 27,800 lb operating weight and 310 hp engine power, the John Deere 8R 310 comes out at roughly 89.7 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 | The John Deere 8R 310’s 9 L engine makes 310 hp, or about 34.4 hp per litre. |
| Torque / RPM note | The John Deere 8R 310’s 1,070 lb-ft torque rating works with its 1,000 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.







