Sierra 18-1843 MerCruiser V8 Dry Joint Exhaust Manifold Replaces 8M0185794All Sierra manifolds are manufactured as a direct OE replacement and are fully interchangeable with the OEM products they are designed to replace.Features: 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); 5.0L MPI Alpha/Bravo 0M300000 - Up; 5.0L CARB Alpha/Bravo 0M600000 - Up; 5.7L CARB Alpha/Bravo 0M600000 - Up; 350 MAG MPI Alpha/Bravo 0L010019 - Up; 350 MAG MPI Horizon Alpha/Bravo 0M300000 - Up; Interchangeable With: MerCruiser; 864308T01; 865049T01; 865735A02; 8M0185794; HGE; 5735; GLM; 51237; Barr MC 1 865735; ; Includes: Exhaust Manifold Gasket 18-2949; Drain Elbow Assembly 18-4224; Use With: Exhaust Elbow: 18-1845; Riser Gasket (Closed): 18-0720; Riser Gasket (Open): 18-0721; Riser Gasket (Constricted): 18-0722;