41100-ZVL-000ZC Gear NHB14M Case - Overview. The 41100-ZVL-000ZC Gear NHB14M Case is an essential component within the Honda marine gear system, playing a crucial role in maintaining the functionality and reliability of your marine engine. This gear case assembly supports the transmission by housing the NHB14M gear, ensuring smooth mechanical motion and optimal power transfer in aquatic environments. Designed to meet strict Honda factory specifications, it ensures seamless integration with exist