14515-ZY3-000 Cap - Overview. The 14515-ZY3-000 Cap is a critical component within the Honda marine engine timing belt tensioner system. This cap plays a vital role in protecting and securing the timing belt tensioner assembly, ensuring that the belt system operates smoothly and reliably. Manufactured to meet stringent OEM specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM replacement part designed speci