50212-ZVD-000 Friction Block - Overview. The 50212-ZVD-000 Friction Block is a key component in Honda marine engine systems. This part plays a vital role in providing essential frictional resistance, contributing to the control and smooth operation of marine equipment. It is engineered to fit precisely within the Swivel Case & Mount Frame systems, ensuring seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda Friction Block des