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The Peterson Fluid Systems R4 one-stage oil pump, right-side mount with rear drive, employs the twisted lobe rotor design to supply dependable oil pressure and scavenging. Its compact fittings and lightweight construction reduce profile height while the 5/8-inch drive shaft with 3/16-inch keyway supports common drive attachments; the rear drive provision enables direct mounting of accessories with the proper adapter.
Peterson Fluid Systems R4 1-Stage Oil Pump - Right Side Mount - Rear Drive
