Quicksilver OEM MerCruiser Alpha One Gen I & Bravo Bellows Exhaust Tube 78458A1This OEM exhaust tube is designed to fit MerCruiser Alpha One Gen I & Bravo I, II, & III drives. This kit comes with the exhaust tube as well as a hose clamp and bellows ground clip.Application Info: Fits Alpha One Gen I drives from 1983-1991 with serial numbers 06225577 thru0D469858; Fits Bravo I, Bravo II, Bravo III drives from 1988-1998 with serial numbers 0B664190 thru 0M100000; Interchangeable with: Sierra; 18-2760; GLM; 89150; Mallory; 9-72810; Mercruiser Stern Drive; 78458;