50211-ZV1-000 Swivel Case Liner - Overview. The 50211-ZV1-000 Swivel Case Liner is a critical component in Honda marine engine systems, providing internal lining for the swivel case assembly. This part plays a key role in protecting and supporting the swivel case, ensuring smooth mechanical operation and reducing wear on essential moving parts. Designed for durability and precise integration, it ensures seamless fitting with existing hardware, maintaining optimal performance and durability of yo