Genuine OEM Audi Air Filter Box, part number 8K0133837BJ. This component is crucial for engine health, housing the air filter and directing clean, filtered air into the engine's intake system. It is typically located in the engine bay, connected to the intake manifold. Constructed from durable plastic, this unit measures approximately 40.5 cm long, 30 cm wide, and 30 cm high, weighing 2.575 kg. Choosing a genuine OEM air filter box ensures precise fitment, proper sealing, and the correct airflow characteristics for optimal engine performance and longevity.