63710-ZVL-901ZB R ENG NH565 CVR - Overview. The 63710-ZVL-901ZB R ENG NH565 CVR is a genuine OEM cover for the rear engine system of Honda marine engines. It plays a vital role in protecting the engine's lower right side (covering NH565) by ensuring that internal engine components remain safe from environmental elements and mechanical damage. Designed specifically for Honda marine applications, this cover supports reliable engine operation and longevity by maintaining structural integrity and pr