06400-ZVD-000 Gear Kit - Overview. The 06400-ZVD-000 Gear Kit is a specialized transmission component essential for Honda marine engine systems. It supports the gearbox system, ensuring reliable power transfer and smooth operation within outboard motors. Designed precisely to Honda factory specifications, this gear kit integrates seamlessly with existing parts, maintaining optimal performance and long-lasting durability.. Key Features. Complete OEM gear kit including bevel gears crucial for tran