Quick answer:
The John Deere 8120 tractor has 250 hp engine horsepower and 160 hp PTO horsepower.
Engine horsepower250 hp
PTO horsepower160 hp
Drawbar horsepower208 hp
Rated RPM2,200 rpm
Torque540 lb-ft
Operating weight19,100 lb
John Deere 8120 Horsepower Details
| Engine horsepower | 250 hp |
|---|---|
| PTO horsepower | 160 hp |
| Drawbar horsepower | 208 hp |
| Rated engine RPM | 2,200 rpm |
| Engine torque | 540 lb-ft |
| Engine displacement | 8.1 L |
| Engine cylinders | 6 cylinders |
| Engine model | turbocharged 8.1L 6-cylinder |
| Operating weight | 19,100 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 8120 Extra Horsepower Notes
| Horsepower note | The John Deere 8120 shows 250 hp at the engine and 160 hp at the PTO, which is a large gap between engine power and PTO power for a large row-crop tractor. |
|---|---|
| PTO note | The John Deere 8120’s PTO output is 160 hp, about 64% of its 250 hp engine rating, so PTO implement choice should be based on the PTO number. |
| Drawbar note | The John Deere 8120 combines 208 hp drawbar horsepower with 19,100 lb operating weight, so traction and ballast can matter as much as power for pulling jobs. |
| Power-to-weight note | At 19,100 lb and 250 hp, the John Deere 8120 works out to about 76.4 lb per engine horsepower, making it light for its power, so traction and ballast can become the limiting factor before engine power. |
| Engine note | The John Deere 8120’s engine setup is engine model turbocharged 8.1L 6-cylinder, 8.1 L displacement, 6 cylinders, rated at 2,200 rpm, matching its large row-crop horsepower range. |
| Torque / RPM note | The John Deere 8120 combines 540 lb-ft of torque with a 2,200 rpm rated engine speed, which fits a typical tractor rated-speed range. |
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.







