<div data-store-description="v1"> <p>Water Pump Impeller Kit for 4HP 5HP Mercury Mariner (1990-1999) 18-3073. Supplied product details follow.</p> <h3>Specifications and fitment</h3> </div> <p>Includes: - Water Pump Impeller Kit</p> <p>Fits Models: - Mercury Mariner 4HP - Mercury Mariner 5HP</p> <p>Model Years: - 1990–1999</p> <p>Submodels: - Applies to listed models</p> <p>Engine Options: - Compatible with standard engine options</p> <p>Description: This Water Pump Impeller Kit is designed specifically for Mercury Mariner outboard motors, providing reliable cooling performance for 4HP and 5HP models manufactured between 1990 and 1999. The kit includes all necessary components for a complete impeller replacement, ensuring optimal water flow and engine protection.</p> <p>Features: - High-quality materials for durability - Easy installation with included components - Designed for optimal cooling efficiency - Compatible with specific Mercury Mariner models - Ensures reliable engine performance</p> <p>Part Number: 18-3073</p>