Bucking Spike - Stihl

This is an aftermarket spike bumper that mounts to the engine crankcase.
Suitable for the following model Stihl chainsaws
Stihl 017, 018, 021, 023, 025, MS170, MS171, MS180, MS181, MS210, MS211, MS230, MS250
OEM Stihl Part Number: 1123 664 0501