S&S TC3 Oil Pump For Harley Twin Cam Features: S&S Cycle provides an upgrade solution to moving oil around the Twin Cam engine with the TC3 Series Pump, which will work perfectly with the TC3 Cam Plate 179-303 and 179-304 TC3 series cam plates These units address the common failure points of the stock oil pump. The special design allows this pump to tolerate larger range of pinion shaft run out. Screens and magnetic traps help protect scavenge rotors from debris Provide additional scavenging with separate scavenge sections for flywheel cavity and cam chest Three stages separate for constant oil pressure is provided while still providing reliable scavenging Note: All S&S TC3 camshaft support plates, including 179-303 for 1999-2006 models, are machined for 2007-15 oil pumps