The John Deere 9420R tractor has 420 hp engine horsepower and 620 hp PTO horsepower.
Engine horsepower420 hp
PTO horsepower620 hp
Drawbar horsepower410 hp
Torque1,650 lb-ft
Operating weight41,470 lb
John Deere 9420R Horsepower Details
Engine horsepower
420 hp
PTO horsepower
620 hp
Drawbar horsepower
410 hp
Engine torque
1,650 lb-ft
Engine displacement
13.5 L
Engine model
the John Deere PowerTech PSS 13.5L
Operating weight
41,470 lb
Horsepower Comparison Chart
Engine horsepower comparison
This model
420 hp
Average
64.9 hp
Low
6 hp
High
540 hp
PTO horsepower comparison
This model
620 hp
Average
57.8 hp
Low
6 hp
High
620 hp
Drawbar horsepower comparison
This model
410 hp
Average
57 hp
Low
5.5 hp
High
470 hp
Operating weight comparison
This model
41,470 lb
Average
5,791.3 lb
Low
300 lb
High
59,000 lb
John Deere 9420R Extra Horsepower Notes
Horsepower note
For pulling work, the John Deere 9420R’s 410 hp drawbar rating is the number to compare, not the higher 420 hp engine rating.
PTO note
The John Deere 9420R’s PTO output is 620 hp, about 147.6% of its 420 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 9420R’s 410 hp drawbar horsepower says more than engine horsepower alone.
Power-to-weight note
At 41,470 lb and 420 hp, the John Deere 9420R works out to about 98.7 lb per engine horsepower, making it light for its power, so traction and ballast can become the limiting factor before engine power.
Engine note
For engine identification, the John Deere 9420R is listed with engine model the John Deere PowerTech PSS 13.5L, 13.5 L displacement.
Torque / RPM note
The John Deere 9420R torque spec is 1,650 lb-ft, which matters when the tractor has to recover under load.
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.
