12328-ZW1-000 Tube Clamp - Overview. The 12328-ZW1-000 Tube Clamp is a critical component designed to securely hold and fasten tubes within Honda marine engine systems. This clamp supports the rigging and accessories system by ensuring proper alignment and preventing dislodgment or vibration during marine operation. Engineered for seamless integration with Honda's marine engine setups, it maintains optimal performance and durability, providing boaters with confidence in their vessel's reliabilit