The John Deere 425 tractor has 20 hp engine horsepower and 18.5 hp PTO horsepower.
Engine horsepower20 hp
PTO horsepower18.5 hp
Drawbar horsepower16.5 hp
Rated RPM3,550 rpm
Operating weight900 lb
John Deere 425 Horsepower Details
Engine horsepower
20 hp
PTO horsepower
18.5 hp
Drawbar horsepower
16.5 hp
Rated engine RPM
3,550 rpm
Engine displacement
37.7 cu in
Engine cylinders
2 cylinders
Engine model
a 20HP Kawasaki 617cc 2-cylinder
Operating weight
900 lb
Horsepower Comparison Chart
Engine horsepower comparison
This model
20 hp
Average
99 hp
Low
5 hp
High
640 hp
PTO horsepower comparison
This model
18.5 hp
Average
86.2 hp
Low
5 hp
High
490 hp
Drawbar horsepower comparison
This model
16.5 hp
Average
87.8 hp
Low
5.5 hp
High
640 hp
Operating weight comparison
This model
900 lb
Average
9,181 lb
Low
320 lb
High
56,320 lb
John Deere 425 Extra Horsepower Notes
Horsepower note
With PTO power at roughly 92.5% of engine horsepower, the John Deere 425 keeps most of its rated power available for PTO work.
PTO note
With 18.5 hp at the PTO, the John Deere 425 is best matched to finish mowing, light-duty rotary cutting, light tilling and small utility PTO jobs; heavy hay tools, large augers and high-load PTO equipment are not the natural match for this power class.
Drawbar note
The John Deere 425’s 16.5 hp drawbar rating is the better number for ground-pulling work than the 20 hp engine rating.
Power-to-weight note
At 900 lb and 20 hp, the John Deere 425 works out to about 45 lb per engine horsepower, making it light for its power, so traction and ballast can become the limiting factor before engine power.
Engine note
The John Deere 425 uses engine model a 20HP Kawasaki 617cc 2-cylinder, 37.7 cu in displacement, 2 cylinders, rated at 3,550 rpm, which helps explain where its horsepower rating comes from.
Torque / RPM note
The John Deere 425 lists 3,550 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.
