Mercruiser exhaust manifold. Replaces Mercruiser #s 99746A3 , 99746A8 , 99746A17 , Barr MC-1-99746 , GLM 51220 , Osco 9745 & Sierra 18-1952-1.Application includes all wet exhaust Mercruiser 4.3 Liter engines through 2000 (non dry joint).
Includes all mounting gaskets and bolts.