08M67-ZW7-030AH 17 Wire 30 Main Harn - Overview. The 08M67-ZW7-030AH 17 Wire 30 Main Harness is a critical electrical component integral to Honda marine engine systems. It serves as the primary wiring harness, facilitating seamless electrical connectivity among various engine parts to ensure reliable operation. Designed specifically for the Honda Active Marine engine system, this harness supports essential functions such as ignition, sensors, and engine controls. Manufactured to meet Honda's OEM