The John Deere D120 tractor has 21 hp engine horsepower and 19.5 hp PTO horsepower.
Engine horsepower21 hp
PTO horsepower19.5 hp
Drawbar horsepower18.5 hp
Rated RPM3,600 rpm
Operating weight450 lb
John Deere D120 Horsepower Details
Engine horsepower
21 hp
PTO horsepower
19.5 hp
Drawbar horsepower
18.5 hp
Rated engine RPM
3,600 rpm
Engine displacement
33 cu in
Engine cylinders
1 cylinders
Operating weight
450 lb
Horsepower Comparison Chart
Engine horsepower comparison
This model
21 hp
Average
64.9 hp
Low
6 hp
High
540 hp
PTO horsepower comparison
This model
19.5 hp
Average
57.8 hp
Low
6 hp
High
620 hp
Drawbar horsepower comparison
This model
18.5 hp
Average
57 hp
Low
5.5 hp
High
470 hp
Operating weight comparison
This model
450 lb
Average
5,791.3 lb
Low
300 lb
High
59,000 lb
John Deere D120 Extra Horsepower Notes
Horsepower note
For power comparison, the John Deere D120 sits at 21 hp engine horsepower with 19.5 hp available at the PTO.
PTO note
The John Deere D120’s 19.5 hp PTO rating should be read with its 3,600 rpm rated engine speed when comparing implement requirements.
Drawbar note
The John Deere D120’s 18.5 hp drawbar rating is the better number for ground-pulling work than the 21 hp engine rating.
Power-to-weight note
The John Deere D120 pairs 21 hp with 450 lb of operating weight, so the real-world result depends heavily on traction, ballast and tyre setup.
Engine note
The John Deere D120’s 33 cu in engine makes 21 hp, or about 0.6 hp per litre.
Torque / RPM note
Use the John Deere D120’s 3,600 rpm rated RPM when comparing engine specs across similar tractors.
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.
