One New Replacement Muffler and Pipe Assembly for Massey Ferguson Tractor Model: 50, 65 Technical Information: Muffler Body Length: 12″ Muffler Body Diameter: 4-1/4″ Pipe Outlet Diameter: 1-3/4″ Complete Vertical Exhaust System No OEM Part Number for Pipe Custom Design 1 Piece Pipe Assembly Has 3 Stanley Flange Inlet Bolts P/N: MF-35 Replaces Part Number: MF3510, 187184M91, MF-35, A- Models This Part Fits: 135, MF135, MF50, MF65 Reference Numbers: 1217-5403, 1217-5403-A, 187184M91, A-MF3510, A-MF3510-A, MF-35, MF-35-A, MF3510, MF3510-A