The John Deere 9R 390 tractor hydraulic pump flow is 55 GPM, and hydraulic system pressure is 3,625 psi.
Hydraulic pump flow55 GPM
Implement flow55 GPM
Total hydraulic flow55 GPM
Hydraulic pressure3,625 psi
Hydraulic system typeclosed-center
Hydraulic fluid capacity50 gal
John Deere 9R 390 Hydraulic Flow Details
Hydraulic pump flow
55 GPM
Implement hydraulic flow
55 GPM
Total hydraulic flow
55 GPM
Hydraulic system pressure
3,625 psi
Hydraulic system type
closed-center
Hydraulic fluid capacity
50 gal
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
55 GPM
Average
37.8 GPM
Low
3.3 GPM
High
85 GPM
Implement hydraulic flow comparison
This model
55 GPM
Average
37.9 GPM
Low
3.3 GPM
High
110 GPM
Total hydraulic flow comparison
This model
55 GPM
Average
38.2 GPM
Low
3.3 GPM
High
85 GPM
Hydraulic pressure comparison
This model
3,625 psi
Average
2,672.7 psi
Low
610 psi
High
3,625 psi
Hydraulic fluid capacity comparison
This model
50 gal
Average
28.5 gal
Low
0.9 gal
High
84 gal
John Deere 9R 390 Extra Hydraulic Notes
Hydraulic flow note
For hydraulic work, the key number on the John Deere 9R 390 is 55 GPM implement flow; that points toward large hydraulic implements and high-demand farm equipment where SCV flow matters.
Hydraulic pressure note
At 3,625 psi, the John Deere 9R 390’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
System type matters on the John Deere 9R 390: closed-center affects how hydraulic flow and pressure are delivered to valves and implements.
Hydraulic fluid capacity note
Hydraulic fluid capacity on the John Deere 9R 390 is 50 gal, but the correct oil type and fill/check procedure should still come from the official manual.
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.
