The agitator shaft fits up into the planetary and drives the beater. No longer Includes spring or washer. KitchenAid has changed the shaft to no longer have a spring on it. This spring is not necessary for the function of the mixer and make cleaning the mixer more difficult.
Stainless steel 3 5/16" long, 1/2" diameter.
Part number WP243368 replaces 243368, 4176067, 4159760 and 4176082.