11410-ZY6-475ZA Chain *NH8* Case - Overview. The 11410-ZY6-475ZA Chain *NH8* Case is a critical component of Honda marine engine systems. It serves as the protective housing for the timing chain system, playing an essential role in maintaining accurate engine timing and smooth operation. Engineered to integrate seamlessly with existing parts, it ensures optimal performance and long-lasting durability within demanding marine environments.. Key Features. Precisely designed OEM part that matches fa