23170-ZZ3-415ZA Mount *NH8* Case - Overview. The 23170-ZZ3-415ZA Mount *NH8* Case is an essential component within Honda marine engine systems. It functions as a mounting case, providing structural support and secure housing for internal components. Designed to ensure durability and reliable operation, it maintains the mechanical integrity of the mounting system in the engine. Precisely engineered, it ensures seamless integration with existing parts, maintaining optimal performance and durabilit