90602-921-000 Tube (B8) Clip - Overview. The 90602-921-000 Tube (B8) Clip is a crucial component designed for Honda marine engine systems. This tube clip supports the rigging and tubing system by securely fastening tubes to prevent movement and maintain system integrity. As a genuine OEM part, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Specifically designed clip to hold and secure 4.5mm diameter tubes (B8) in Honda marine a