Glazing bead for old Alside excaliber windows

Thanks for posting! Your glazing bead reminds me of our 55-164 7' White Glazing Bead or our 55-192 6' Glazing Bead. To determine if either of these is the right replacement for your bead, carefully look over the dimensions below. I believe one of these should be the correct fit for your repairs.

Profile diagram of 55-164

Profile view of 55-192