The Ignition Rotor pushes on to the distributor shaft inside the cap. The rotor spins around inside the cap where it contacts the center post which gets power from the coil and sends power to the individual spark plug posts on the cap.
Suitable for stock applications on 1961-64 40HP Beetle, 1960-63 40HP Bus
Suitable for the following distributors:
113905205A, 113905205B, 311905205, 315905205B
Bosch Part Number 04010