Sierra 18-1842 MerCruiser V6 Dry Join Exhaust ManifoldThe Sierra V6 Dry Join Exhaust Manifold helps ensure water does not enter the cylinders in the case of a gasket failure. Water is transferred from the manifold to the riser externally. Can be used with the OE riser.Features: Fits: GM V6 (262cid) engines 2002 and newer; Dry Joint Style; Includes all the necessary gaskets and hardware for easy installation.; Primed and painted for added durability and protection.; Components are ready to install out-of-the-box.; Backed by Sierra's comprehensive warranty.; Fits: MerCruiser (2002 & Newer); 4.3L CARB Alpha/Bravo 0M615000 - Up; 4.3L MPI Alpha/Bravo 0M61500 - Up; Interchangeable With: MerCruiser Stern Drive; 864612T01; Barr MC 1 864612; ; GLM 51227; ; HGE 4612; ; Includes: Exhaust Manifold Gasket 18-2909-9; Bolt; Use With: Exhaust Elbow: 18-1845; Riser Gasket (Closed): 18-0720; Riser Gasket (Open)" 18-0721; Riser Gasket (Restricted): 18-0722;