The John Deere 9R 440 tractor hydraulic pump flow is 55 GPM, and hydraulic system pressure is 2,900 psi.
Hydraulic pump flow55 GPM
Implement flow55 GPM
Total hydraulic flow55 GPM
Hydraulic pressure2,900 psi
Hydraulic system typeopen-center
Hydraulic fluid capacity67.6 qt (16.9 gal)
John Deere 9R 440 Hydraulic Flow Details
Hydraulic pump flow
55 GPM
Implement hydraulic flow
55 GPM
Total hydraulic flow
55 GPM
Hydraulic system pressure
2,900 psi
Hydraulic system type
open-center
Hydraulic fluid capacity
67.6 qt (16.9 gal)
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
55 GPM
Average
20.7 GPM
Low
3.7 GPM
High
110 GPM
Implement hydraulic flow comparison
This model
55 GPM
Average
21.2 GPM
Low
3.7 GPM
High
110 GPM
Total hydraulic flow comparison
This model
55 GPM
Average
19.9 GPM
Low
3.7 GPM
High
55 GPM
Hydraulic pressure comparison
This model
2,900 psi
Average
2,198.4 psi
Low
700 psi
High
4,200 psi
Hydraulic fluid capacity comparison
This model
16.9 gal
Average
12.1 gal
Low
1.2 gal
High
55 gal
John Deere 9R 440 Extra Hydraulic Notes
Hydraulic flow note
The John Deere 9R 440’s implement flow figure is about 55 GPM, so hydraulic attachment choice should be based on flow demand, not horsepower alone.
Hydraulic pressure note
At 2,900 psi, the John Deere 9R 440’s hydraulic system pressure matters most for lift force, cylinder force and loader response.
Rear remotes / SCV note
Rear remotes / SCVs depend on the tractor’s hydraulic package and options.
For hydraulic implements, match the implement to the available hydraulic flow (55 GPM), not just the number of remotes.
Check the operator manual or hydraulic package because SCV count can change by year, market and trim package.
Hydraulic system type note
The John Deere 9R 440 uses a open-center hydraulic setup, so compatibility depends on both the attachment and valve configuration.
Hydraulic fluid capacity note
The John Deere 9R 440’s hydraulic fluid capacity is listed as 67.6 qt (16.9 gal); check the operator manual before servicing because capacity can change with transmission, hydraulic options and market.
Official information note
Mistakes do happen. Hydraulic flow, pump flow, implement flow, pressure, rear remote / SCV setup and fluid capacity can change by year, market, transmission, pump option, loader package and hydraulic package. Please check the operator manual and official deere.com website for official information.
