36104-ZY6-003 Spiral Tube - Overview. The 36104-ZY6-003 Spiral Tube is an essential component in Honda marine engine systems, primarily serving as a protective conduit that organizes and shields electrical wiring or flexible lines within the engine assembly. Its robust design supports the rigging system, ensuring the smooth operation and longevity of your marine engine by preventing damage and wear from exposure to harsh marine environments.. Key Features. Designed as a genuine OEM part by Honda