Proline® Pop Up Piston Kit for Stihl MS661 chainsaws. Please match you part with ours for proper fitment; actual pictures shown. This kit is Not made in China.
Includes:
- Piston
- Ring
- Circlips
- Wrist pin
Specs:
- Extra compression Pop Up Piston
- 56mm
- Proline® Performance Series
Replaces Stihl OEM #:
- 1144 030 2001, 11440302001