Genuine OEM Hyundai Waterpipe O-Ring, part number 263122A500. This critical component provides a watertight seal, preventing fluid leaks and maintaining system pressure. It is specifically designed for the waterpipe connection within the cooling system. Made from durable elastomer, it is engineered for long-term resistance to heat and coolant. Choosing a genuine OEM O-ring ensures the precise dimensions and material composition required for a reliable, leak-free seal.