56511-ZZ3-003 Tube (Outer) - Overview. The 56511-ZZ3-003 Tube (Outer) is a vital component within Honda marine engine systems. This outer tube functions as a protective and structural element, ensuring the smooth operation and longevity of the engine's rigging and control systems. Precisely engineered to meet factory specifications, it integrates seamlessly with existing parts, maintaining optimal performance and durability for Honda marine engines.. Key Features. OEM genuine Honda part designed