Genuine OEM Audi Air Filter Housing, part number 8K0133837CA. This housing is designed to securely contain the engine's air filter, protecting it from debris and ensuring that only filtered air enters the intake system. It is typically located in the engine bay, forming a crucial part of the air intake assembly. Constructed from durable, heat-resistant plastic, this housing weighs approximately 2.59 kg. Choosing a genuine OEM air filter housing guarantees precise fitment, proper sealing, and optimal airflow characteristics, which are vital for engine protection and maintaining peak performance.