24343-ZV1-000 Seal Holder - Overview. The 24343-ZV1-000 Seal Holder is an essential component designed for Honda marine engine systems. It functions within the extension case system to secure and support engine seals critical for preventing fluid leakage and ensuring the proper operation of the engine's internal systems. This part is engineered to fit seamlessly into Honda marine engines, maintaining optimal performance and durability.. Key Features. Precisely designed to hold seals in place wit