The John Deere 420C tractor hydraulic pump flow is 23 GPM, and hydraulic system pressure is 1,250 psi.
Hydraulic pump flow23 GPM
Implement flow23 GPM
Total hydraulic flow23 GPM
Hydraulic pressure1,250 psi
Hydraulic system typeopen-center
Hydraulic fluid capacity7.5 qt (1.9 gal)
John Deere 420C Hydraulic Flow Details
Hydraulic pump flow
23 GPM
Implement hydraulic flow
23 GPM
Total hydraulic flow
23 GPM
Hydraulic system pressure
1,250 psi
Hydraulic system type
open-center
Hydraulic fluid capacity
7.5 qt (1.9 gal)
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
23 GPM
Average
17.3 GPM
Low
1.2 GPM
High
110 GPM
Implement hydraulic flow comparison
This model
23 GPM
Average
17.1 GPM
Low
1.2 GPM
High
110 GPM
Total hydraulic flow comparison
This model
23 GPM
Average
16.5 GPM
Low
1.2 GPM
High
70 GPM
Hydraulic pressure comparison
This model
1,250 psi
Average
2,330.1 psi
Low
435 psi
High
3,625 psi
Hydraulic fluid capacity comparison
This model
1.9 gal
Average
8.6 gal
Low
0.6 gal
High
30.1 gal
John Deere 420C Extra Hydraulic Notes
Hydraulic flow note
With about 23 GPM implement flow, the John Deere 420C 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
The John Deere 420C’s hydraulic pressure is listed at 1,250 psi, which is lower-pressure; flow still decides attachment speed while pressure affects force.
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 (23 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 420C uses a open-center hydraulic setup, so compatibility depends on both the attachment and valve configuration.
Hydraulic fluid capacity note
The John Deere 420C’s hydraulic fluid capacity is listed as 7.5 qt (1.9 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.
