The John Deere 4040S tractor hydraulic pump flow is 25.4 GPM, and hydraulic system pressure is 2,250 psi.
Hydraulic pump flow25.4 GPM
Implement flow25.4 GPM
Total hydraulic flow25.4 GPM
Hydraulic pressure2,250 psi
Hydraulic system typeclosed-center
Hydraulic fluid capacity100 qt (25 gal)
John Deere 4040S Hydraulic Flow Details
Hydraulic pump flow
25.4 GPM
Implement hydraulic flow
25.4 GPM
Total hydraulic flow
25.4 GPM
Hydraulic system pressure
2,250 psi
Hydraulic system type
closed-center
Hydraulic fluid capacity
100 qt (25 gal)
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
25.4 GPM
Average
15.7 GPM
Low
5.1 GPM
High
57 GPM
Implement hydraulic flow comparison
This model
25.4 GPM
Average
14.9 GPM
Low
4.8 GPM
High
32 GPM
Total hydraulic flow comparison
This model
25.4 GPM
Average
15.4 GPM
Low
4.8 GPM
High
57 GPM
Hydraulic pressure comparison
This model
2,250 psi
Average
2,336.3 psi
Low
380 psi
High
3,625 psi
Hydraulic fluid capacity comparison
This model
25 gal
Average
9.9 gal
Low
0.7 gal
High
25.4 gal
John Deere 4040S Extra Hydraulic Notes
Hydraulic flow note
For hydraulic work, the key number on the John Deere 4040S is 25.4 GPM implement flow; that points toward multiple SCVs, larger implements and heavier hydraulic demand.
Hydraulic pressure note
At 2,250 psi, the John Deere 4040S’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 (25.4 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 4040S’s hydraulic system type is closed-center, which is built for higher-pressure hydraulic control than a basic open-center setup.
Hydraulic fluid capacity note
Hydraulic fluid capacity on the John Deere 4040S is 100 qt (25 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.
