<div data-store-description="v1"> <p>Water Pump Impeller Kit 2005-2010 for Mercury Mariner 25-50HP 821354A2. Supplied product details follow.</p> <h3>Specifications and fitment</h3> </div> <p>Includes: - Water Pump Impeller Kit</p> <p>Fits Models: - Mercury Mariner - Mercury Outboard</p> <p>Model Years: - 2005–2010</p> <p>Submodels: - 25HP, 30HP, 40HP, 50HP - Chassis codes not applicable for outboard motors</p> <p>Engine Options: - 25HP: 2-Stroke, 30HP: 2-Stroke, 40HP: 4-Stroke, 50HP: 4-Stroke - Common engine codes include 2T and 4T variants</p> <p>Description: This Water Pump Impeller Kit is designed specifically for Mercury Mariner outboard motors ranging from 25 to 50 horsepower produced between 2005 and 2010. It ensures optimal cooling performance by effectively circulating water through the engine, preventing overheating and potential damage.</p> <p>Features: - Direct replacement for OEM part numbers 821354A2 and 8508910 - Enhances engine cooling efficiency - Durable construction for long-lasting performance - Easy installation for DIY maintenance - Compatible with multiple horsepower ratings</p> <p>Part Number: 821354A2, 8508910</p>