The Peterson R4 three-stage oil pump is a compact, modular racing pump that relies on a twisted‑lobe rotor design and aluminum rotors to reduce weight while delivering strong pressure and scavenge performance. Its low‑profile housings and shallow screw‑in fittings ease packaging in tight engine bays. This right‑side mount, rear‑drive unit provides front pressure and flexible mounting for racing accessories.
Peterson Fluid Systems R4 3-Stage Oil Pump - Right Side Mount - HV - Rear Drive - Front Pressure