91558-SM4-003 Tube (135mm) Clip - Overview. The 91558-SM4-003 Tube (135mm) Clip is a specialized component designed to secure tubes within Honda marine engine systems. This clip plays a critical role in maintaining the integrity and reliable operation of the tubing by ensuring it stays firmly in place during marine engine use. Engineered to match exact factory specifications, it guarantees seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Pr