If the plastic air filter box on your Lexus IS250 or IS350 is cracked or broken, this A-Premium replacement housing will get your intake system sealed up tight again. It's a direct fit for 2006-2015 model year IS250 and IS350 sedans and convertibles with the DOHC 2.5L or 3.5L V6 engine (make sure that's your engine!). It's made from durable black plastic (PP+TPO) and is designed to OEM specifications. This housing holds your air filter securely in place, protecting it from dirt and debris, which is crucial for smooth engine performance. The part numbers it replaces include 1770031641 and 1770031642. Comes brand new in a box. A straightforward fix that helps your Lexus breathe properly.