Description Genuine wet exhaust manifold for Cummins QSM11 marine diesel engines, designed to channel exhaust gases and cooling water safely away from the cylinder head in water-cooled exhaust systems. • Cross References/Supersedes: 4931256; 3973334; 07T0-40; 493125600. • Applications: Cummins QSM11 marine diesel engines with water-cooled (wet) exhaust systems. • Genuine Cummins component engineered to maintain efficient exhaust flow while resisting thermal and corrosion stress in marine service.