GENUINE HONDA 50° VTC ACTUATOR INTAKE CAM GEAR K-SERIESGenuine Honda 50 VTC actuator. These units can wear causing noise and vibration in the cylinder head. They are also used as an upgrade from the 25 actuator to extract more power from the engine, with this 50 gear giving you the maximum timing benefit from any stock cam gear. Expect unrivalled Japanese quality and a first time fit for the application. Sourced directly from Japan.