14751-ZV5-003 Valve Spring - Overview. The 14751-ZV5-003 Valve Spring is a critical component in Honda marine engine systems, responsible for regulating the precise opening and closing actions of engine valves. This spring supports the valvetrain system and plays a vital role in maintaining reliable combustion and overall engine efficiency. Engineered as a genuine OEM part, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Coiled