40201-ZV7-722ZA Case *NH282MU* - Overview. The 40201-ZV7-722ZA Case *NH282MU* is a critical component of Honda marine engine systems, designed to support the power transmission and mechanical housing functions of your marine engine. This extension case plays an essential role in maintaining the structural integrity and smooth operation of the NH282MU engine system. Engineered to exact factory specifications and tolerances, it ensures seamless integration with existing parts, maintaining optimal