The STIHL 41800302007 is a genuine OEM piston with a 38 mm diameter, designed for optimal performance and durability in compatible STIHL engines. This critical engine component ensures proper compression and power delivery for various STIHL brushcutters, trimmers, pole pruners, and chainsaws, including models like the FS 120, FS 200, FS 250, FS 300, FS 350, FR 350, HT 250, BT 120 C, MS 200, MS 200 T, MS 201, and MS 201 T. Manufactured to STIHL's rigorous quality standards, it provides a reliable replacement for maintaining engine efficiency.