The Harley Davidson Twin-Cam TwinCam OEM Stock Camshaft is a genuine replacement part with the OE/OEM part number CVO-253 and Manufacturer Part Number 25534-99/25544-00. Designed specifically for Harley Davidson motorcycles, this camshaft is essential for controlling the timing of the engine's valves, ensuring optimal performance and efficiency. Made by the original manufacturer, this camshaft is a reliable and high-quality component for maintaining the engine's valvetrain system.