32500-ZY6-025AH 25' 23-Wire Main Hrn - Overview. The 32500-ZY6-025AH 25' 23-Wire Main HRN is a high-quality wiring harness designed specifically for Honda marine engine systems. This harness supports the electrical system, enabling reliable power and signal transmission to various engine components. As an essential part of the marine rigging system, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. This wiring harness features 23