19215-ZW9-020 Impeller Housing - Overview. The 19215-ZW9-020 Impeller Housing is a critical part of the Honda marine engine systems. It supports the water pump system by securely housing the impeller that pumps cooling water through the engine to prevent overheating. Designed as a genuine OEM part, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precision-engineered impeller housing that encloses the water pump impeller.. Manufactured to exact Honda factory specifications for fit, tolerance, and performance.. Supports the marine engine's cooling system by directing water flow efficiently.. Durable construction designed to withstand marine environments and stresses.. Ensures reliable operation and prevents engine overheating by maintaining proper water circulation.. Integrates cleanly with existing hardware, seals, and related pump components.. Why Choose Genuine OEM. Using original Honda parts like the 19215-ZW9-020 Im