The John Deere 6420 tractor hydraulic pump flow is 25 GPM, and hydraulic system pressure is 2,900 psi.
Hydraulic pump flow25 GPM
Implement flow25 GPM
Total hydraulic flow25 GPM
Hydraulic pressure2,900 psi
Hydraulic system typeopen-center
Hydraulic fluid capacity13.7 gal
John Deere 6420 Hydraulic Flow Details
Hydraulic pump flow
25 GPM
Implement hydraulic flow
25 GPM
Total hydraulic flow
25 GPM
Hydraulic system pressure
2,900 psi
Hydraulic system type
open-center
Hydraulic fluid capacity
13.7 gal
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
25 GPM
Average
22 GPM
Low
5.3 GPM
High
59 GPM
Implement hydraulic flow comparison
This model
25 GPM
Average
21.7 GPM
Low
5.3 GPM
High
43 GPM
Total hydraulic flow comparison
This model
25 GPM
Average
21.9 GPM
Low
4 GPM
High
60 GPM
Hydraulic pressure comparison
This model
2,900 psi
Average
2,726.4 psi
Low
435 psi
High
3,046 psi
Hydraulic fluid capacity comparison
This model
13.7 gal
Average
14.9 gal
Low
2.8 gal
High
43.7 gal
John Deere 6420 Extra Hydraulic Notes
Hydraulic flow note
The John Deere 6420 should be matched to implements that fit its 25 GPM hydraulic-flow range.
Hydraulic pressure note
The John Deere 6420’s hydraulic pressure is listed at 2,900 psi, which is strong tractor hydraulic pressure; flow still decides attachment speed while pressure affects force.
Rear remotes / SCV note
Rear remotes / SCVs are mentioned, but the exact count is not clearly confirmed in the scraped data.
For hydraulic implements, match the implement to the available hydraulic flow (25 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 6420 uses a open-center hydraulic setup, so compatibility depends on both the attachment and valve configuration.
Hydraulic fluid capacity note
The John Deere 6420’s hydraulic fluid capacity is listed as 13.7 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.
