Aftermarket Mercruiser Shift Cable Bellow and clamp. Replaces 74639A 2 for Mercruiser Alpha, Bravo, R, M, MR drives. Mercruiser Alpha, Bravo, R,M, MR drives. Used on all #1, #2 units, Alpha, Alpha Gen II and Bravo I, II, III 1983-95/98/02/04/06-07/09 MERCURY MERCURY MERCRUISER STERNDRIVE I/O engines.