A good used DSR gear pump. Cleaned, inspected, flow tested here.

Flow tag: 2.58 GPM @ 1800 Pump RPM @ 50 PSI
6.03 GPM @ 4000 Pump RPM @ 100 PSI

3-bolt flange, new shaft seal. -8AN Inlet, -6AN outlets.

Pump cavity contains a few pits, but isn't in bad condition.