Proline® Pop Up Piston Kit for Stihl MS391 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
- 49mm
- Proline® Performance Series
Replaces Stihl OEM #:
- 1140 030 2008