14431-ZW5-000 Inner Rocker Arm A - Overview. The 14431-ZW5-000 Inner Rocker Arm A is a critical component in Honda marine engine systems. This intake rocker arm plays an essential role in the engine's valve train, facilitating the precise movement needed to open and close engine valves effectively. Designed specifically for Honda's marine engines, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precision-engineered intake rocker