Coolant expansion tank designed as a direct replacement for vehicles requiring OE specification 2055000049.This unit is engineered to meet fit, function, and standards.Constructed using materials to withstand normal operating conditions, it integrates into the vehicle's cooling system.Suitable for use in select models with W205, W213, and X253 chassis codes.The component is built to precise specifications to performance and long service life.Includes all necessary features for straightforward installation as a factory-specification upgrade or repair solution.