The Peterson Fluid Systems R4 three-stage oil pump uses a twisted-lobe rotor design with all-aluminum rotors to reduce weight and boost output in a modular, low-profile housing. Internal scavenge manifolding and shallow screw-in fittings keep clearance requirements minimal. This left-side, rear-drive unit with front-pressure capability adapts to front or rear drive mounting for racing engine flexibility.
Peterson Fluid Systems R4 3-Stage Oil Pump - Left Side Mount - HV - Rear Drive - Front Pressure