12347-ZVP-000 Bolt Set - Overview. The 12347-ZVP-000 Bolt Set is an essential component designed specifically for Honda marine engine systems, playing a crucial role in securing the head cover plug seal and other related assemblies. This set includes high-quality bolts that help maintain the integrity and reliable operation of the engine by ensuring proper sealing and mechanical stability. Manufactured to meet OEM standards, the bolt set integrates seamlessly with existing engine components, sup