ANSWER Hello, the fill cap is item #580166. Thank you!
By: Joe From: Milwaukee, Wi Date: Aug 07, 2012
QUESTION Do you have a "four inch" or 3 15/16 inside dimension lid?
ANSWER Hi. If you have a model # of the machine you need a replacement lid for, we can better assist you with finding it. Or if you have the parts manual and find the part #, you can search for it on our website. Thanks!