This brand-new air filter housing with OEM codes 81084050021, 81084050017 and 81084006031 is designed for MAN truck engines. It firmly holds the air filter and prevents dust, debris and impurities from entering the engine intake system. Made of durable high-strength material, it features strong vibration resistance and long service life for harsh driving environments. Produced strictly per OEM standards, it fits perfectly and serves as an ideal replacement for damaged original housing.