91354-ZZ3-003 O-Ring (2.4X41.2) - Overview. The 91354-ZZ3-003 O-Ring (2.4X41.2) is an essential sealing component designed specifically for Honda marine engine systems. Serving a critical role in preventing leaks within the engine's fluid systems, this O-ring helps maintain the reliability and functionality of your boating equipment. Crafted to meet factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precisel