Sierra International 18-1843 Dry-Joint Exhaust Replacement Manifold for Mercruiser 865735A02, 865049T01, 864308T01 Dry Joint Style Exhaust Manifold for Mercruiser Replaces: Mercruiser-865735A02, 865049T01, 864308T01 Use with: 18-1845 RISER, 18-0720 RISER GASKET (CLOSED), 18-0721 RISER GASKET (OPEN), 18-0722 RISER GASKET (RESTRICTED) Fits: 305, 350, 377, 5.0L, 5.7L, 6.2L (2002 and Newer) All Sierra parts qualify for and are covered under Sierra's Industry Leading Customer Satisfaction Warranty Before Ordering, Please Verify this is the Correct Part for your Application. For Assistance, Please Call Sierra's Tech Support at 1-877-663-8396