19232-ZV1-306 Impeller Gasket - Overview. The 19232-ZV1-306 Impeller Gasket is a crucial component in Honda marine engine systems. It functions within the water pump system to create a secure, watertight seal around the impeller, preventing water leaks that could affect engine cooling efficiency. Designed to meet exact factory specifications and tolerances, this gasket ensures seamless integration with existing parts, maintaining optimal performance and durability of your marine engine.. Key Fea