The Peterson Fluid Systems R4 high-volume one-stage oil pump with rear drive and reserve rotation uses twisted lobe rotors to provide strong pressure and effective scavenge vacuum while remaining lightweight. Its modular, low-profile design with shallow fittings accommodates various racing engine layouts and offers flexible mounting options to support accessory drives when paired with the correct adapters.
Peterson Fluid Systems R4 1-Stage Oil Pump - Right Side Mount - HV - Rear Drive - Reserve Rotation