Quick answer:
The John Deere 40 tractor has 20 hp engine horsepower and 27 hp PTO horsepower.
Engine horsepower20 hp
PTO horsepower27 hp
Drawbar horsepower132.4 hp
Rated RPM1,650 rpm
Torque76.7 lb-ft
Operating weight2,900 lb
John Deere 40 Horsepower Details
| Engine horsepower | 20 hp |
|---|---|
| PTO horsepower | 27 hp |
| Drawbar horsepower | 132.4 hp |
| Rated engine RPM | 1,650 rpm |
| Engine torque | 76.7 lb-ft |
| Engine displacement | 1.6 L |
| Engine cylinders | 2 cylinders |
| Engine model | a 23 hp |
| Operating weight | 2,900 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 40 Extra Horsepower Notes
| Horsepower note | With 20 hp, the John Deere 40 falls into the low-horsepower compact tractor power range. |
|---|---|
| PTO note | The John Deere 40’s PTO output is 27 hp, about 135% of its 20 hp engine rating, so PTO implement choice should be based on the PTO number. |
| Drawbar note | Use 132.4 hp drawbar horsepower for pulling comparisons and 27 hp PTO horsepower for driven implements on the John Deere 40. |
| Power-to-weight note | The John Deere 40 pairs 20 hp with 2,900 lb of operating weight, so the real-world result depends heavily on traction, ballast and tyre setup. |
| Engine note | The John Deere 40’s 1.6 L engine makes 20 hp, or about 12.5 hp per litre. |
| Torque / RPM note | The John Deere 40’s 76.7 lb-ft torque figure should be read with its 1.6 L engine size and 1,650 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.







