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The Peterson R4 four-stage oil pump is a compact performance pump offering left-side mounting with rear drive and front pressure capability. Its twisted‑lobe rotor architecture allows for aluminum rotors that save weight yet sustain solid oil pressure. The modular design includes an internal scavenge manifold and low‑profile screw‑in fittings so the pump can be configured for a range of motorsports and high‑demand engine installations.
Peterson Fluid Systems R4 4-Stage Oil Pump - Left Side Mount - HV - Rear Drive - Front Pressure
