Quick answer:
The John Deere 4840 tractor hydraulic pump flow is 23 GPM, and hydraulic system pressure is 2,000 psi.
Hydraulic pump flow23 GPM
Implement flow29.5 GPM
Total hydraulic flow29.5 GPM
Hydraulic pressure2,000 psi
Hydraulic system typeopen-center
Hydraulic fluid capacity16.5 gal
John Deere 4840 Hydraulic Flow Details
| Hydraulic pump flow | 23 GPM |
|---|---|
| Implement hydraulic flow | 29.5 GPM |
| Total hydraulic flow | 29.5 GPM |
| Hydraulic system pressure | 2,000 psi |
| Hydraulic system type | open-center |
| Hydraulic fluid capacity | 16.5 gal |
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
Implement hydraulic flow comparison
Total hydraulic flow comparison
Hydraulic pressure comparison
Hydraulic fluid capacity comparison
John Deere 4840 Extra Hydraulic Notes
| Hydraulic flow note | For hydraulic work, the key number on the John Deere 4840 is 29.5 GPM implement flow; that points toward multiple SCVs, larger implements and heavier hydraulic demand. |
|---|---|
| Hydraulic pressure note | Hydraulic pressure on the John Deere 4840 is 2,000 psi, but hydraulic performance depends on pressure and flow together. |
| Rear remotes / SCV note |
|
| Hydraulic system type note | System type matters on the John Deere 4840: open-center affects how hydraulic flow and pressure are delivered to valves and implements. |
| Hydraulic fluid capacity note | The John Deere 4840’s hydraulic fluid capacity is listed as 16.5 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.







