50211-ZVP-000 Swivel Case Liner - Overview. The 50211-ZVP-000 Swivel Case Liner is a crucial component within Honda marine engine systems, specifically designed to support the swivel case mechanism. This liner plays an integral role in protecting the swivel case system while contributing to the smooth, reliable operation of your marine engine. Designed to meet exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key F