63100-881-840ZB Eng Nh282mu Cover - Overview. The 63100-881-840ZB Eng Nh282mu Cover is a specialized engine cover designed to support Honda marine engine systems. It plays an essential role in protecting and enclosing critical engine components, preventing damage from external elements and ensuring the engine operates reliably. Made to fit perfectly with the NH282MU system, this cover ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features.