Quick answer:
The John Deere GX85 tractor has 18.5 hp engine horsepower and 13 hp PTO horsepower.
Engine horsepower18.5 hp
PTO horsepower13 hp
Drawbar horsepower13 hp
Torque22.5 lb-ft
Operating weight342 lb
John Deere GX85 Horsepower Details
| Engine horsepower | 18.5 hp |
|---|---|
| PTO horsepower | 13 hp |
| Drawbar horsepower | 13 hp |
| Engine torque | 22.5 lb-ft |
| Engine displacement | 5.1 L |
| Operating weight | 342 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere GX85 Extra Horsepower Notes
| Horsepower note | The John Deere GX85 shows 18.5 hp at the engine and 13 hp at the PTO, which is a noticeable drop between engine power and PTO power for a low-horsepower compact tractor. |
|---|---|
| PTO note | The John Deere GX85’s PTO output is 13 hp, about 70.3% of its 18.5 hp engine rating, so PTO implement choice should be based on the PTO number. |
| Drawbar note | At 13 hp drawbar power, the John Deere GX85 is about 5.5 hp below its engine rating once power is measured as pull at the ground. |
| Power-to-weight note | Using 342 lb operating weight and 18.5 hp engine power, the John Deere GX85 comes out at roughly 18.5 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 | For engine identification, the John Deere GX85 is listed with 5.1 L displacement. |
| Torque / RPM note | At 22.5 lb-ft of torque, the John Deere GX85 has useful low-speed pull for its size without being a heavy pulling tractor. |
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.







