Quick answer:
The John Deere M665 tractor hydraulic pump flow is 15 GPM.
Hydraulic pump flow15 GPM
Implement flow10.2 GPM
Total hydraulic flow15 GPM
Hydraulic system typeclosed-center
Hydraulic fluid capacity8 qt (2 gal)
John Deere M665 Hydraulic Flow Details
| Hydraulic pump flow | 15 GPM |
|---|---|
| Implement hydraulic flow | 10.2 GPM |
| Total hydraulic flow | 15 GPM |
| Hydraulic system type | closed-center |
| Hydraulic fluid capacity | 8 qt (2 gal) |
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
Implement hydraulic flow comparison
Total hydraulic flow comparison
Hydraulic fluid capacity comparison
John Deere M665 Extra Hydraulic Notes
| Hydraulic flow note | The John Deere M665’s total flow is higher than implement flow, so use the implement-flow number when matching hydraulic tools and SCV-driven equipment. |
|---|---|
| Rear remotes / SCV note |
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| Hydraulic system type note | The John Deere M665 uses a closed-center hydraulic setup, so compatibility depends on both the attachment and valve configuration. |
| Hydraulic fluid capacity note | For maintenance, the John Deere M665’s hydraulic fluid capacity matters more than flow rate because it affects oil changes, filter service and refill quantity. |
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.







