63100-ZVL-B01ZA Eng *NH565* Cover - Overview. The 63100-ZVL-B01ZA Eng *NH565* Cover is an essential component for Honda marine engine systems. This painted engine cover, coded with the color NH565 (Grand Prix White), serves to protect vital engine parts from environmental damage while enhancing the appearance of your marine engine. As part of the engine assembly system, it ensures durability and reliable operation by shielding internal mechanisms from exposure and preserving system integrity. En