Quick answer:
The John Deere 3120 tractor has 80 hp engine horsepower and 22 hp PTO horsepower.
Engine horsepower80 hp
PTO horsepower22 hp
Drawbar horsepower80 hp
Rated RPM2,600 rpm
Torque55.6 lb-ft
Operating weight3,000 lb
John Deere 3120 Horsepower Details
| Engine horsepower | 80 hp |
|---|---|
| PTO horsepower | 22 hp |
| Drawbar horsepower | 80 hp |
| Rated engine RPM | 2,600 rpm |
| Engine torque | 55.6 lb-ft |
| Engine displacement | 1.5 L |
| Engine cylinders | 3 cylinders |
| Engine model | Yanmar 1.5L 3-cylinder |
| Operating weight | 3,000 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 3120 Extra Horsepower Notes
| Horsepower note | With PTO power at roughly 27.5% of engine horsepower, the John Deere 3120 keeps most of its rated power available for PTO work. |
|---|---|
| PTO note | Use the John Deere 3120’s 22 hp PTO rating when sizing implements; the 80 hp engine rating is not the number the implement actually receives. |
| Drawbar note | Use 80 hp drawbar horsepower for pulling comparisons and 22 hp PTO horsepower for driven implements on the John Deere 3120. |
| Power-to-weight note | The John Deere 3120 pairs 80 hp with 3,000 lb of operating weight, so the real-world result depends heavily on traction, ballast and tyre setup. |
| Engine note | Engine details for the John Deere 3120 come together as engine model Yanmar 1.5L 3-cylinder, 1.5 L displacement, 3 cylinders, rated at 2,600 rpm. |
| Torque / RPM note | Torque and rated speed on the John Deere 3120 are 55.6 lb-ft and 2,600 rpm, showing how the engine is set up to work 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.







