One New Aftermarket Replacement Muffler to Fit Massey Ferguson Tractor Model: 150 Technical Information: Vertical/Round Body – Shell Diameter 3 1/4″ Dimension A(1) A: INLET LENGTH 10″ Dimension B(2) B: INLET DIAMETER 1 3/4″ Dimension C(3) C: SHELL LENGTH 17″ Dimension D(4) D: OUTLET LENGTH 10″ Dimension E(5) E: OUTLET DIAMETER 1 1/2″ Dimension F(6) F: OVERALL LENGTH 37″ Replaces Part Number: 505404M91 Models This Part Fits: 150 Reference Numbers: 505404M91, A-505404M91, A-505404M91-A