New, original air filter, NOS from old dealer inventory. OEM number 46520658 refers to a rectangular panel air filter (filter element) for the engine, consisting of a pleated paper or synthetic filter medium with a rubber or plastic sealing edge. The part is designed to clean the intake air of particles such as dust, dirt, and soot before the air enters the combustion chambers, thereby preventing engine wear. This filter is specifically designed for use in various models from the Fiat Group with gasoline and diesel engines (such as Twin Spark and JTD), including the Alfa Romeo 145, 146, and 155, as well as the Fiat Bravo, Brava, and Marea. OEM Lancia 46520658