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The Peterson Fluid Systems R4 five-stage oil pump brings racing-proven oil control with twisted lobe rotors that sustain pressure across a wide operating envelope and strong scavenge sections that reduce crankcase windage. Its compact, low-profile design and shallow screw-in fittings keep installation space minimal. This high-volume, rear-drive R4 features a 5/8" drive shaft and includes options for accessory mounting via rear drive adapters, plus adjustable oil pressure and customization options for diverse motorsport uses.
Peterson Fluid Systems R4 5-Stage Oil Pump - BH - HV - Rear Drive
