The John Deere 4640 tractor has 185 hp engine horsepower and 185 hp PTO horsepower.
Engine horsepower185 hp
PTO horsepower185 hp
Drawbar horsepower185 hp
Rated RPM2,200 rpm
Torque540 lb-ft
Operating weight18,500 lb
John Deere 4640 Horsepower Details
Engine horsepower
185 hp
PTO horsepower
185 hp
Drawbar horsepower
185 hp
Rated engine RPM
2,200 rpm
Engine torque
540 lb-ft
Engine displacement
7.6 L
Engine cylinders
6 cylinders
Engine model
John Deere 7.6L 6-cylinder
Operating weight
18,500 lb
Horsepower Comparison Chart
Engine horsepower comparison
This model
185 hp
Average
113.7 hp
Low
20 hp
High
310 hp
PTO horsepower comparison
This model
185 hp
Average
101.7 hp
Low
17 hp
High
280 hp
Drawbar horsepower comparison
This model
185 hp
Average
98.4 hp
Low
17 hp
High
250 hp
Operating weight comparison
This model
18,500 lb
Average
10,042.2 lb
Low
317.2 lb
High
27,180 lb
John Deere 4640 Extra Horsepower Notes
Horsepower note
The John Deere 4640 lists engine horsepower and PTO horsepower very close together at about 185 hp.
PTO note
The John Deere 4640 has 185 hp available at the PTO, placing it in the large row-crop tractor PTO range rather than a heavy-implement class.
Drawbar note
Use 185 hp drawbar horsepower for pulling comparisons and 185 hp PTO horsepower for driven implements on the John Deere 4640.
Power-to-weight note
The John Deere 4640 pairs 185 hp with 18,500 lb of operating weight, so the real-world result depends heavily on traction, ballast and tyre setup.
Engine note
The John Deere 4640’s engine setup is engine model John Deere 7.6L 6-cylinder, 7.6 L displacement, 6 cylinders, rated at 2,200 rpm, matching its large row-crop horsepower range.
Torque / RPM note
The John Deere 4640’s 540 lb-ft torque figure should be read with its 7.6 L engine size and 2,200 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.
