1.The hose/tube are designed to meet or exceed OEM specifications. The bellow will come exactly as shown with the stainless clamp. 2.Replaces Part #: 78458A1, 18-2760, 9-72810, 89150 3.These bellows are designed for the following MerCruiser applications: R/MR/Alpha One Serial No. 6225577 & UP (1983-1990) Bravo I, II, III Serial No. OB664190 & UP (1988 and later) Blackhawk Serial No. 0F18677 & UP (1994-1995). SHIPPING FREE