41100-ZVT-600ZC Gear Nhb14m Case - Overview. The 41100-ZVT-600ZC Gear Nhb14m Case is an essential component within Honda marine gear systems. This part plays a critical role in housing and protecting the gear mechanism of the lower unit, ensuring smooth power transmission from the engine to the propeller. Designed specifically for Honda outboard motors, it ensures reliability and durability under marine operating conditions. With a precise OEM construction, it ensures seamless integration with e