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The Peterson R4 1-stage oil pump with wet vacuum integrates a hex-rotor vacuum design and includes a vacuum regulator on the vac pump. Using Peterson's twisted-lobe rotor concept and aluminum rotors, the compact pump produces solid oil pressure and significant crankcase vacuum while remaining low profile thanks to shallow fittings. A rear-drive provision allows accessory mounting with appropriate adapters.
Peterson Fluid Systems R4 1-Stage Oil Pump - Left Side Mount - HV - Rear Drive w/ Vac
