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The Peterson R4 two-stage oil pump blends a twisted-lobe rotor design with lightweight 6061-T6 construction to deliver strong pressure and scavenge performance while keeping weight low. This high-volume left-side mount pump features a rear-drive provision for accessories, shallow fittings for a low profile, an adjustable relief for oil pressure tuning, and aluminum rotors to save weight without sacrificing pumping capability; made in the USA.
Peterson Fluid Systems R4 2-Stage Oil Pump - Left Side Mount - HV - Rear Drive
