One New Aftermarket Replacement Muffler and Pipe Assembly Fits Massey Ferguson Models: TO20, TO30 Technical Information: Muffler Body Diameter: 3 1/4″ Pipe Outlet Diameter: 1 1/2″ Flare: 2″ Replaces Part Numbers: 505545M91, 505545M92 Models This part fits: T020, T030, TE20, TO20, TO30 Reference Numbers: 505545M91, 505545M91-A, 505545M92, 505545M92-A, 505545V92, 505545V92-A, A-MF1610, A-MF1610-A, MF-16, MF-16-A, MF1610, MF1610-A, MUK40-0038