90112-ZY6-U11 Stopper Bolt - Overview. The 90112-ZY6-U11 Stopper Bolt is an essential fastener component used within Honda marine engine systems. This part performs a critical function by securing specific mechanisms that contribute to the overall reliability of your engine. Designed to fit precisely into the system, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda Stopper Bolt designed specifically for marine e