The Twin Air Air Box Cover is designed for TM EN 125-300 and MX 250/300 models from 2022-2023. This cover prevents water and bike cleaner from entering your intake when cleaning the airbox. It is manufactured from tough, durable ABS plastic and includes a rubber sealing ring for a perfect, leak-free fit. To use, simply remove your air filter and install the Airbox Cover with the provided mounting screw if required. The manufacturer part number is 160128.