One New Replacement White/Oliver/Mpl Moline Tractor Muffler that fits the following models: Super 66, Super 77, Super 88, with Gas or Diesel Engine, Vertical/Round Body – Body Diameter 3 1/4″ Dimension A: 4″ Inlet Length Dimension B: 2 3/8″ Inlet Inside Diameter Dimension C: 20″ Body Length Dimension D: 5″ Outlet Length Dimension E: 2 1/2″ Outlet Outside Diameter Dimension F: 29″ Overall Length. Replaces Part Number: KA452B, KA-452B Models This part fits: Super 66, Super 77, Super 88 Reference Numbers: A-KA452B, A-KA452B-A, KA-452B, KA-452B-A, KA452B