The John Deere 3420 tractor hydraulic pump flow is 10 GPM, and hydraulic system pressure is 2,500 psi.
Hydraulic pump flow10 GPM
Implement flow21 GPM
Total hydraulic flow21 GPM
Hydraulic pressure2,500 psi
Hydraulic system typeclosed-center
Hydraulic fluid capacity4 gal
John Deere 3420 Hydraulic Flow Details
Hydraulic pump flow
10 GPM
Implement hydraulic flow
21 GPM
Total hydraulic flow
21 GPM
Hydraulic system pressure
2,500 psi
Hydraulic system type
closed-center
Hydraulic fluid capacity
4 gal
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
10 GPM
Average
15.7 GPM
Low
5.1 GPM
High
57 GPM
Implement hydraulic flow comparison
This model
21 GPM
Average
14.9 GPM
Low
4.8 GPM
High
32 GPM
Total hydraulic flow comparison
This model
21 GPM
Average
15.4 GPM
Low
4.8 GPM
High
57 GPM
Hydraulic pressure comparison
This model
2,500 psi
Average
2,336.3 psi
Low
380 psi
High
3,625 psi
Hydraulic fluid capacity comparison
This model
4 gal
Average
9.9 gal
Low
0.7 gal
High
25.4 gal
John Deere 3420 Extra Hydraulic Notes
Hydraulic flow note
With about 21 GPM implement flow, the John Deere 3420 sits in the utility tractor hydraulic range and is best suited to larger loaders, rear remotes and more demanding implements, depending on pressure and valve setup.
Hydraulic pressure note
At 2,500 psi, the John Deere 3420’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 (21 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 3420: 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 3420 is 4 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.
