Compatible with 06-17 OEM components or S&S 565142 cam support plate. Compatible with chain & gear driven camshafts. Comes with three sets of gerotors for consistent pressure and increased oil scavenging for a reliable oil return. More forgiving for cam run-out. Offers screens and magnetic traps to catch debris before it does damage to the scavenge rotor. Note: 565144 TC3 oil pump is also compatible with 565141 S&S cam support plate for 99-06 Twin Cam (excl. 2006 Dyna). Note: For all components 06-17 style hydraulic chain tensioners are required with chain driven cams.