Oring 25x3.5 for fuel cap +oil cap o ring 23x 3
Genuine Stihl Part
OEM Part No. 9645 948 7734+ 9645 948 2470
Suitable for the Following Applications:
FS40, FS40C, FS50, FS50C, MS440, MS230, MS230C, FR130T, MS270, MS270C, MS280, MS280C, MS341, MS192T, MS192TC