FEBI 22626 is identified by the exact MPN as a coolant expansion tank for the vehicle cooling system. The official bilstein group result names the product as a coolant expansion tank, and independent product results repeat the same FEBI part number and product type. One returned catalog description specifies that the tank is supplied without a lid. The supplied record identifies this as a new aftermarket radiator or cooling-system component. No dimensions, material or confirmed vehicle fitment are asserted in this listing. Check whether a cap is required and compare the mounting and hose connections before ordering.