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The Peterson R4 four-stage oil pump is a compact, modular pump designed for racing and high‑demand engines, offered here as a right-side mount with rear drive and front pressure options. Twisted‑lobe rotors enable lightweight aluminum rotor construction while producing robust oil pressure. The internal scavenge manifold and shallow fittings reduce overall profile, allowing flexible mounting and fitment choices for custom engine builds.
Peterson Fluid Systems R4 4-Stage Oil Pump - Right Side Mount - Rear Drive Drag - Front Pressure
