19210-ZY3-003 Pump Impeller - Overview. The 19210-ZY3-003 pump impeller is a crucial component of Honda marine engine systems, specifically designed to support the water pump cooling system. This rotating impeller creates necessary water flow to prevent engine overheating, ensuring reliable and efficient operation. Manufactured to Honda's exact OEM specifications, it guarantees seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. High-quality p