41100-zvp-803zb Gear Nhb14m Case - Overview. The 41100-ZVP-803ZB Gear Nhb14m Case is a vital component in Honda marine engine systems. This gear case supports the transmission system, providing essential mechanical function for reliable propulsion and overall marine engine performance. Designed to meet precise factory standards, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM component specifically designed as