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The Peterson R4 five-stage oil pump in left-side mount with rear drive and front pressure delivers expanded scavenging and pressure capacity for demanding installations. Twisted‑lobe rotors provide steady pressure while enabling lightweight rotor construction, and internal scavenge sections pull vacuum to reduce windage. The pump’s modular, low‑profile design and shallow fittings support flexible mounting options for racing and endurance applications.
Peterson Fluid Systems R4 5-Stage Oil Pump - Left Side Mount - Rear Drive - Front Pressure
