The John Deere X390 tractor has 23 hp engine horsepower and 18.5 hp PTO horsepower.
Engine horsepower23 hp
PTO horsepower18.5 hp
Drawbar horsepower19.5 hp
Rated RPM3,600 rpm
Operating weight500 lb
John Deere X390 Horsepower Details
Engine horsepower
23 hp
PTO horsepower
18.5 hp
Drawbar horsepower
19.5 hp
Rated engine RPM
3,600 rpm
Engine displacement
44.3 cu in
Engine cylinders
2 cylinders
Engine model
Kawasaki FS651V
Operating weight
500 lb
Horsepower Comparison Chart
Engine horsepower comparison
This model
23 hp
Average
64.9 hp
Low
6 hp
High
540 hp
PTO horsepower comparison
This model
18.5 hp
Average
57.8 hp
Low
6 hp
High
620 hp
Drawbar horsepower comparison
This model
19.5 hp
Average
57 hp
Low
5.5 hp
High
470 hp
Operating weight comparison
This model
500 lb
Average
5,791.3 lb
Low
300 lb
High
59,000 lb
John Deere X390 Extra Horsepower Notes
Horsepower note
The John Deere X390 is rated at 23 hp engine power and 18.5 hp at the PTO, a drop of about 4.5 hp between the engine and PTO.
PTO note
The John Deere X390’s PTO output is 18.5 hp, about 80.4% of its 23 hp engine rating, so PTO implement choice should be based on the PTO number.
Drawbar note
For plows, ground tools and pull-type loads, the John Deere X390’s 19.5 hp drawbar horsepower says more than engine horsepower alone.
Power-to-weight note
At 500 lb and 23 hp, the John Deere X390 works out to about 21.7 lb per engine horsepower, making it light for its power, so traction and ballast can become the limiting factor before engine power.
Engine note
With 44.3 cu in across 2 cylinders, the John Deere X390 averages about 22.1 L per cylinder.
Torque / RPM note
The John Deere X390 lists 3,600 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.
