38552-ZW9-120AH HRN/KIT (8-9.9D) - Overview. The 38552-ZW9-120AH HRN/KIT (8-9.9D) is a genuine Honda marine engine harness kit essential for the proper electrical rigging of 8 to 9.9 horsepower Honda marine engines. This harness kit contributes to the reliable function of the ignition and key switch control system, playing a critical role in maintaining engine responsiveness and safety. Specifically designed for mid-range Honda outboard motors, it ensures seamless integration with existing parts