Is Part AP4100262 metal?
Answer Hello Andre! Unfortunately, we do not have the specs available to verify the material the knob is made out of. Sorry about that!
How do you reattach the knob as it seems to be attached with some wires cables not a knob to slide onto?
Answer Hello Chuck. The knob your referring to 74011550 is a push on pull off knob. Make sure the shaft of the switch is not broke. Hope this helps.