16816-ZZ3-010 Tube Clamp Bracket - Overview. The 16816-ZZ3-010 tube clamp bracket is an essential component for Honda marine engine systems. Designed specifically to secure and support tubing within the engine's rigging system, this bracket plays a critical role in maintaining the reliable operation of your marine engine. It provides a secure mounting point to ensure tubing stays properly in place, preventing wear and tear or disruptions in system function. Engineered to fit seamlessly and meet