Quick answer:
The John Deere 3400 tractor has 85 hp engine horsepower and 75 hp PTO horsepower.
Engine horsepower85 hp
PTO horsepower75 hp
Drawbar horsepower70 hp
Rated RPM2,100 rpm
Torque229 lb-ft
Operating weight3,500 lb
John Deere 3400 Horsepower Details
| Engine horsepower | 85 hp |
|---|---|
| PTO horsepower | 75 hp |
| Drawbar horsepower | 70 hp |
| Rated engine RPM | 2,100 rpm |
| Engine torque | 229 lb-ft |
| Engine displacement | 3.9 L |
| Engine cylinders | 4 cylinders |
| Engine model | the John Deere 4039T |
| Operating weight | 3,500 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 3400 Extra Horsepower Notes
| Horsepower note | The useful spread on the John Deere 3400 is small: 85 hp engine horsepower versus 75 hp PTO horsepower. |
|---|---|
| PTO note | The John Deere 3400 has 75 hp available at the PTO, placing it in the utility tractor PTO range rather than a heavy-implement class. |
| Drawbar note | At 70 hp drawbar power, the John Deere 3400 is about 15 hp below its engine rating once power is measured as pull at the ground. |
| Power-to-weight note | The John Deere 3400’s weight-to-power figure is about 41.2 lb per engine horsepower; that means 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 3400 come together as engine model the John Deere 4039T, 3.9 L displacement, 4 cylinders, rated at 2,100 rpm. |
| Torque / RPM note | The John Deere 3400’s 229 lb-ft torque figure should be read with its 3.9 L engine size and 2,100 rpm rated speed. |
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.







