One Brand New Replacement Exhaust Pipe with Rain Cap Assembly Fits Caterpillar Models: D3, D3B, D3C, D4C, 931C, 935C, 931B Technical Information: (1) Overall Muffler Length = 451mm, 17-3/4″ Body Length = 394mm, 15-1/2″ Width = 177.8mm, 7″ Inlet Inside Diameter = 76.657mm, 3.02″ Outlet Outside Diameter = 66.68mm, 2.62″ Replaces Part Number: 7N4674 (1) Rain Cap Replaces Part Number: 7S4995 Models This part fits: 910, 931B, 931C, 935C, D3B, D3C, D4C, IT12 References numbers: 74674, 74995