41102-ZZ3-000 Gear Case Grommet - Overview. The 41102-ZZ3-000 Gear Case Grommet is an essential rubber seal designed to protect the gear case system of Honda marine engine systems. This part supports the gear case by preventing water intrusion and isolating components within the gear case assembly. Designed to fit precisely with Honda marine engines, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. The gear case grommet acts as a