The John Deere 6603 tractor hydraulic pump flow is 16.6 GPM, and hydraulic system pressure is 2,900 psi.
Hydraulic pump flow16.6 GPM
Implement flow15 GPM
Total hydraulic flow15 GPM
Hydraulic pressure2,900 psi
Hydraulic fluid capacity52 L (13.7 gal)
John Deere 6603 Hydraulic Flow Details
Hydraulic pump flow
16.6 GPM
Implement hydraulic flow
15 GPM
Total hydraulic flow
15 GPM
Hydraulic system pressure
2,900 psi
Hydraulic fluid capacity
52 L (13.7 gal)
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
This model
16.6 GPM
Average
22 GPM
Low
5.3 GPM
High
59 GPM
Implement hydraulic flow comparison
This model
15 GPM
Average
21.7 GPM
Low
5.3 GPM
High
43 GPM
Total hydraulic flow comparison
This model
15 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 6603 Extra Hydraulic Notes
Hydraulic flow note
For hydraulic work, the key number on the John Deere 6603 is 15 GPM implement flow; that points toward larger loaders, rear remotes and more demanding implements, depending on pressure and valve setup.
Hydraulic pressure note
At 2,900 psi, the John Deere 6603’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 (15 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 fluid capacity note
The John Deere 6603’s hydraulic fluid capacity is listed as 52 L (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.
