41100-ZZ5-752ZB Gear Nhb14M Case - Overview. The 41100-ZZ5-752ZB Gear Nhb14M Case is a critical component within Honda marine engine systems. This gear case supports the propulsion system by housing and protecting essential gears, ensuring smooth mechanical operation and power transmission. Engineered to Honda's OEM specifications, it guarantees seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precise gear case assembly designed specificall