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The Peterson R4 five-stage oil pump configured for right-side mount with high-volume rear-drive drag and front pressure output uses a twisted-lobe rotor design and lightweight components to produce strong oil pressure and effective scavenge. The low-profile fitment, shallow screw-in fittings and modular layout let engine builders tailor the pump for racing installations.
Peterson Fluid Systems R4 5-Stage Oil Pump - Right Side Mount - HV - Rear Drive Drag -Front Pressure
