Genuine OEM Audi Engine Air Filter Box, part number 8K0133837BM. This crucial component serves as the housing for the engine's air filter, protecting it from debris and directing filtered air efficiently into the engine intake system. It is an integral part of the engine's air intake assembly. Constructed from durable plastic, this air filter box weighs approximately 2.53 kg. Opting for a genuine OEM air filter box guarantees precise fitment, proper sealing, and optimal airflow characteristics, which are essential for engine protection and maintaining peak performance.