63100-ZY3-H02ZC Eng Nh565 Cover - Overview. The 63100-ZY3-H02ZC Eng Nh565 Cover is a critical component designed specifically for Honda marine engine systems. This engine cover plays a vital role in protecting the engine assembly by providing a durable protective casing that shields internal parts from environmental elements and potential damage. Engineered to fit Honda-Active Marine products, particularly those using the NH565 code (Grand Prix White), this cover ensures seamless integration wit