50412-ZY9-000 Splash Plate - Overview. The 50412-ZY9-000 Splash Plate is an essential component of Honda marine engine systems. It is engineered to prevent water splash-back in the propeller vicinity, supporting optimal engine cooling and operation efficiency. Designed specifically for use within the watercraft propulsion system, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM splash plate designed precisely fo