The John Deere 9120 tractor has 280 hp engine horsepower and 230 hp PTO horsepower.
Engine horsepower280 hp
PTO horsepower230 hp
Drawbar horsepower226 hp
Rated RPM2,100 rpm
Torque900 lb-ft
Operating weight30,968 lb
John Deere 9120 Horsepower Details
Engine horsepower
280 hp
PTO horsepower
230 hp
Drawbar horsepower
226 hp
Rated engine RPM
2,100 rpm
Engine torque
900 lb-ft
Engine displacement
8.1 L
Operating weight
30,968 lb
Horsepower Comparison Chart
Engine horsepower comparison
This model
280 hp
Average
117.3 hp
Low
8 hp
High
620 hp
PTO horsepower comparison
This model
230 hp
Average
103.8 hp
Low
8 hp
High
620 hp
Drawbar horsepower comparison
This model
226 hp
Average
100.5 hp
Low
7.5 hp
High
620 hp
Operating weight comparison
This model
30,968 lb
Average
9,758.8 lb
Low
340 lb
High
59,000 lb
John Deere 9120 Extra Horsepower Notes
Horsepower note
The useful spread on the John Deere 9120 is small: 280 hp engine horsepower versus 230 hp PTO horsepower.
PTO note
With 230 hp at the PTO, the John Deere 9120 is best matched to large PTO-driven equipment where the implement horsepower requirement matters more than the engine rating; large implements still need to be matched by PTO requirement, ballast, traction and transmission setup.
Drawbar note
The John Deere 9120’s 226 hp drawbar rating is the better number for ground-pulling work than the 280 hp engine rating.
Power-to-weight note
Using 30,968 lb operating weight and 280 hp engine power, the John Deere 9120 comes out at roughly 110.6 lb per engine horsepower, meaning it is balanced enough that both traction and horsepower matter.
Engine note
The John Deere 9120’s 8.1 L engine makes 280 hp, or about 34.6 hp per litre.
Torque / RPM note
The John Deere 9120’s 900 lb-ft torque figure should be read with its 8.1 L engine size and 2,100 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.
