OEM:31659,74639,74639A2,74639B,74639B1 Sierra: 18-2753-2 Exhaust Bellows for Mercrusier Bravo & Alpha One Engines Fits the Following Mercrusier Engines Alpha One Gen.II 1990-1998&Up R/MR/ALPHA ONE 1983-1991 Bravo One/Two/Three 1988-1998 Bravo XR One/Three 1998-2009 Bravo X One/Two/Three 1998,2013 INTEGRATED TRANSOM 1998-2009 Package Contains the Following Components: 1 x Shift Cable Bellows 1 x Stainless Clamp Type :Stern Drive Shift Cable Bellows Engine Type：Mercrusier Stern Drive Engines