<div data-store-description="v1"> <p>Water Pump Impeller (Sierra #18-3073) for Mercury Mariner 4HP 5HP. Supplied product details follow.</p> <h3>Specifications and fitment</h3> </div> <p>Includes: - Water Pump Impeller</p> <p>Fits Models: - Mercury Mariner 4HP, Mercury Mariner 5HP</p> <p>Model Years: - Check fitment before purchase</p> <p>Submodels: - Applies to listed models</p> <p>Engine Options: - Compatible with standard engine options</p> <p>Description: This Water Pump Impeller is designed for Mercury Mariner outboard motors, specifically the 4HP and 5HP models. It ensures efficient cooling by circulating water through the engine, preventing overheating and maintaining optimal performance.</p> <p>Features: - Direct replacement for Mercury Mariner part number 47-96305M - Compatible with Sierra part number 18-3073 - Durable construction for long-lasting performance - Easy installation for quick maintenance - Essential for maintaining engine cooling efficiency</p> <p>Part Number: 47-96305M</p>