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The Peterson Fluid Systems R4 five-stage oil pump uses a twisted lobe rotor layout to enable all-aluminum rotors for lower weight while maintaining strong oil delivery. Its low-profile design includes an internal scavenge manifold and shallow fittings for tight clearances. This left-side, rear-drive model provides front-pressure capability and supports front or rear drive mounting, offering flexibility for custom racing engine setups.
Peterson Fluid Systems R4 5-Stage Oil Pump - Left Side Mount - HV - Rear Drive - Front Pressure
