Proline® cylinder piston rings for Stihl MS311 MS391 chainsaws with 49mm bore size. Verify this is the correct part for your model before purchasing, as some models listed used more than one style or part number, depending on the manufacturing date. Please match your part with ours for proper fitment; actual pictures are shown. Parts are Not made in China.
Includes:
- Piston ring (2pcs)
Specs:
- 49x1.2mm
- Type of end gap: side pin
Replaces Stihl OEM #:
- 1140 034 3001, 11400343001
Fits Models:
- MS 311, MS 391, MS311, MS391