A well-sealed cooling system is the key to keeping an outboard engine running at peak performance, and the Mercury Water Seal (26-884462) ensures just that. Designed to maintain a tight, leak-proof seal in Mercury and Mariner outboard engines, this OEM component prevents water from escaping where it shouldn't, helping regulate engine temperature and protect critical components.. Crafted from high-quality, marine-grade materials, this seal is built to endure the relentless exposure to water, pressure, and temperature changes. Whether you're replacing a worn-out seal or tackling routine cooling system maintenance, ensuring a proper fit is essential to prevent overheating and long-term engine damage.. Key Benefits:. Prevents Leaks & Overheating - Maintains a reliable seal, keeping the cooling system functioning efficiently.. OEM Precision Fit - Manufactured to Mercury's exact standards for seamless installation.. Built for Durability - Resists wear, water intrusion, and temperature fluctu