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The Peterson R4 four-stage oil pump is a compact, high-capacity racing pump offered in a left-side mount with rear drive and front pressure. Its twisted‑lobe rotor design enables the use of lightweight aluminum rotors while maintaining strong oil pressure. An internal scavenge manifold and shallow, screw‑in fittings create a low‑profile, modular unit that can be adapted to a variety of high‑demand engine applications.
Peterson Fluid Systems R4 4-Stage Oil Pump - Left Side Mount - Rear Drive Drag - Front Pressure
