Quick answer:
The John Deere 4420 tractor has 105 hp engine horsepower and 102 hp PTO horsepower.
Engine horsepower105 hp
PTO horsepower102 hp
Drawbar horsepower100 hp
Rated RPM2,500 rpm
Operating weight8,283 lb
John Deere 4420 Horsepower Details
| Engine horsepower | 105 hp |
|---|---|
| PTO horsepower | 102 hp |
| Drawbar horsepower | 100 hp |
| Rated engine RPM | 2,500 rpm |
| Engine displacement | 5.4 L |
| Engine cylinders | 6 cylinders |
| Engine model | John Deere |
| Operating weight | 8,283 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 4420 Extra Horsepower Notes
| Horsepower note | The John Deere 4420 shows 105 hp at the engine and 102 hp at the PTO, which is a small drop from engine power to PTO power for a utility tractor. |
|---|---|
| PTO note | With 102 hp at the PTO, the John Deere 4420 is best matched to hay equipment, larger cutters, augers and heavier farm implements; implement size, ground speed and crop/load conditions will decide how hard it can work. |
| Drawbar note | The John Deere 4420’s 100 hp drawbar rating is the better number for ground-pulling work than the 105 hp engine rating. |
| Power-to-weight note | At 8,283 lb and 105 hp, the John Deere 4420 works out to about 78.9 lb per engine horsepower, making it light for its power, so traction and ballast can become the limiting factor before engine power. |
| Engine note | Engine details for the John Deere 4420 come together as engine model John Deere, 5.4 L displacement, 6 cylinders, rated at 2,500 rpm. |
| Torque / RPM note | The John Deere 4420 lists 2,500 rpm as the rated engine RPM, which is the speed attached to its power rating. |
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.







