91547-SF4-003 Harness (123.5mm) Band - Overview. The 91547-SF4-003 Harness (123.5mm) Band is a crucial component for Honda marine engine systems. It functions as a wire harness band designed to organize and secure wiring assemblies, ensuring optimal electrical connectivity and preventing damage caused by vibration or movement. Its specific size of 123.5mm and blue color coding make it easily identifiable and suitable for precise placement. This band ensures seamless integration with existing par