63718-ZW9-000 Cushion Rubber - Overview. The 63718-ZW9-000 Cushion Rubber is a critical component in Honda marine engine systems. It is primarily designed to absorb vibration and shock, providing significant protection to other components and improving the overall user experience. This rubber cushion is a vital part of the Honda marine system, ensuring seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda part ensuring exact ma