F38 Flange Hydraulic Pumps

F38 flange hydraulic pumps are pump-only Annovi Reverberi units fitted with the F38 close-couple flange — the SAE A 82.55 two-bolt interface that mounts a hydraulic motor directly to the pump with no belts, couplers, or bell housing. This is AR’s small-frame hydraulic architecture, covering the RK, XM, XW, and RG series in the 4–8 GPM class used across service trucks, municipal equipment, agricultural washdown, and compact industrial systems.

Because the flange locates the motor shaft precisely on the pump centerline, F38 installations minimize side load and vibration, extending seal and bearing life while keeping the footprint compact enough for tight equipment layouts. These are the correct replacement pumps for existing F38-mounted drives: match your pump model and duty point, transfer your motor, and you are back in service without re-engineering the mount.

Every listing includes flow, pressure, RPM, and power requirements so you can verify your hydraulic motor and circuit before ordering. Need the larger splined-shaft architecture instead? See our direct drive hydraulic pumps. For guidance matching F38 flange hydraulic pumps to your existing motor, call WSHPWR with your model number and we will confirm compatibility.