Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Peterson R4 four-stage oil pump in right-side mount with rear drive and reverse rotation is designed to meet high‑demand engine requirements. Twisted‑lobe rotors produce steady oil pressure while allowing lightweight rotor construction; scavenge sections create vacuum to reduce windage. The modular, low‑profile design with shallow screw‑in fittings supports varied mounting and accessory configurations for racing and custom engine builds.
Peterson Fluid Systems R4 4-Stage Oil Pump - Right Side Mount - Rear Drive - Reserve Rotation Drag
