The STIHL 41477900903 AV Housing is a genuine OEM replacement part designed to provide essential anti-vibration functionality for various STIHL outdoor power equipment. This housing is crucial for reducing vibrations during operation, enhancing user comfort and extending the lifespan of the machine. It is specifically engineered for models such as the FS 400, FS 450, FS 480, and SP 450, ensuring a precise fit and optimal performance. Constructed from durable materials, this AV housing maintains the integrity of the anti-vibration system.