Pulley Hub, 356/912 Generator

Typically, the hub will develop a groove at the corners of the base where the pulley halves anchor to it. This allows the pulley halves to rock back and forth, fatiguing the metal and breaking the pulleys (which will ruin your day). Note the lack of groove on this hub.

See Also:
539.09.315 Inner Pulley Half
539.09.316 Outer Pulley Half
539.09.314 Shims
547.09.303 Pulley Nut

Fits:
356 50-65
912 65-69

Reference/Interchange Numbers:
53909309/539.09.303