So my plastic oil fill tube is broken and I need to buy a new one. The part from my tube is lycoming 75767 and I found it on ACS. Now, I'm not sure if there is a gasket where it threads to the engine since I'm not at the plane, but I assume it needs one. Can someone inform me what that part number is for the lower gasket? Also, what is the number for the one needed for the oil dip stick to the oil fill tube?