40119-ZY3-003 Case Grommet Band - Overview. The 40119-ZY3-003 Case Grommet Band is a critical component within Honda marine engine systems. This rubber grommet band acts as a protective seal inside the engine case, safeguarding internal components from water intrusion, dirt, and other contaminants. By ensuring a tight fit and secure mounting, it maintains the engine's integrity and helps prevent damage caused by external elements, promoting longevity and reliable operation.. Key Features. Genuin