The Stihl 41123510400 is a genuine OEM replacement fuel tank designed for a range of Stihl trimmers and brushcutters. This essential component ensures proper fuel storage and delivery to the engine. It is compatible with models including FS120, FS200, FS250, FS300, FS350, BT120C, BT121, FR350, FR450, and FR480. Constructed to Stihl's original specifications, this fuel tank provides a reliable fit and performance, maintaining the integrity of your Stihl power equipment.