Stihl Clutch Drum :

Genuine Stihl Part
Part Number- 4144 160 2904 (Replaces 4144 160 2900)

Suitable for the Following Applications:
KM56 C, KM56 RC, FS38, FS45, FS45 C, FS45 L, FS46, FS46 C, FS40, FS40 C, FS50, FS50 C, FS40, FS40 C, FS50, FS50 C, FS5