Part Number: 75154

Fits: Stihl 017, 018, 021, 023, 025, MS170, MS171, MS180, MS181, MS210, MS211, MS230, MS250, MS270, MS271, MS280, MS291, MS311 & MS391.

Replaces OEM: 9638 003 1581

Size: 15 x 25 x 5