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The Peterson Fluid Systems R4 one-stage oil pump, left-side mount with rear drive, uses a twisted lobe rotor design to deliver solid oil pressure and scavenging vacuum in demanding motorsports applications. Lightweight aluminum rotors and shallow fittings reduce depth; a 5/8-inch drive shaft with 3/16-inch keyway accepts common drive options and the rear drive lets you mount accessories with appropriate adapters.
Peterson Fluid Systems R4 1-Stage Oil Pump - Left Side Mount - Rear Drive
