32530-ZW7-U20 Sub-harness Assembly - Overview. The 32530-ZW7-U20 Sub-Harness Assembly is a vital component designed for Honda marine engine systems, specifically supporting the power trim-tilt mechanism (Power Trim-Tilt (C)). This sub-harness assembly acts as an intermediary electrical connection point within the rigging system, enabling efficient and reliable power and signal flow. As a genuine Honda OEM part, it ensures seamless integration with existing parts, maintaining optimal performance