Genuine OEM Hyundai Coolant Reservoir Mounting Bracket, part number 253S3AA000. This essential bracket is designed to securely hold the coolant expansion tank (reservoir) within the engine bay. It plays a critical role in maintaining the stability of the cooling system components. Using a genuine OEM bracket ensures precise fitment and the durability required to withstand engine vibrations and temperature fluctuations, preventing leaks or damage to the coolant system.