41005-ZVA-000ZA Gear NH246 Case - Overview. The 41005-ZVA-000ZA Gear NH246 Case is a crucial component in Honda marine engine systems, specifically designed for optimal power transmission within the marine gear assembly. This genuine OEM part serves as the housing for the NH246 gear, playing an essential role in ensuring reliable mechanical operation and seamless integration within the marine propulsion system. Crafted to meet strict factory specifications, it guarantees durable performance and