Drag Specialties HV / HP Oil Pump For Harley This HV / HP Oil Pump will help to reduce oil carryover during high rpm operation higher volume helps reduce engine and oil temperatures. Features: 53mm diameter rotors for maximum performance Gain of 20 oil pressure, 125 pressure volume and 135 scavenge volume over OEM stock Tc88 oil pumps Gain of 16 oil pressure, 66 pressure volume and 100 scavenge volume over OEM stock Tc96 oil pumps High-quality die-cast aluminum body construction, high-strength steel gear construction Fit both stock and aftermarket cam support plates for seamless installation Note: Does not fit Screaming Eagle cam plate.