The John Deere 8400R tractor hydraulic pump flow is 38 GPM, and hydraulic system pressure is 2,900 psi.
Hydraulic pump flow38 GPM
Implement flow30 GPM
Total hydraulic flow30 GPM
Hydraulic pressure2,900 psi
Hydraulic system typeclosed-center
Hydraulic fluid capacity29.6 qt (7.4 gal)
John Deere 8400R Hydraulic Flow Details
Hydraulic pump flow
38 GPM
Implement hydraulic flow
30 GPM
Total hydraulic flow
30 GPM
Hydraulic system pressure
2,900 psi
Hydraulic system type
closed-center
Hydraulic fluid capacity
29.6 qt (7.4 gal)
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
38 GPM
Average
33.4 GPM
Low
2.5 GPM
High
78 GPM
Implement hydraulic flow comparison
This model
30 GPM
Average
32.8 GPM
Low
2.4 GPM
High
115 GPM
Total hydraulic flow comparison
This model
30 GPM
Average
33.6 GPM
Low
2.4 GPM
High
85 GPM
Hydraulic pressure comparison
This model
2,900 psi
Average
2,569.3 psi
Low
300 psi
High
3,046 psi
Hydraulic fluid capacity comparison
This model
7.4 gal
Average
26.1 gal
Low
0.6 gal
High
79.3 gal
John Deere 8400R Extra Hydraulic Notes
Hydraulic flow note
The John Deere 8400R should be matched to implements that fit its 30 GPM hydraulic-flow range.
Hydraulic pressure note
The John Deere 8400R’s hydraulic pressure is listed at 2,900 psi, which is strong tractor hydraulic pressure; flow still decides attachment speed while pressure affects force.
For hydraulic implements, match the implement to the available hydraulic flow (30 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 8400R: closed-center affects how hydraulic flow and pressure are delivered to valves and implements.
Hydraulic fluid capacity note
The John Deere 8400R’s hydraulic fluid capacity is listed as 29.6 qt (7.4 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.
