One New Replacement Vertical Exhaust Pipe For Ford New Holland Tractor Models: 801, 901, 4000 (4 Cylinder, 1958-1964) Vertical Exhaust Pipe With Clamp, No Muffler. One Piece Pipe, For 2-90 And Up Models, For Vertical Exhaust, Muffler In Original Horizontal Position. Inlet 1-5/8″ ID, Outlet 1-3/4″ OD For 172 CID Gas Engines. Replaces Part Numbers: M1110GV, FOE-20 EQ Models This Part Fits: 4000, 801, 901 Reference Numbers: FOE-20, M1110, M1110-A, M1110GV