Proline® cylinder and pop up piston kit for Stihl MS311, MS391 chainsaws. Please compare your existing part with ours to verify proper fitment; actual product pictures are shown. Parts are Not made in China.
⚠️ IMPORTANT FITMENT: Stihl produced two different cylinder styles for the MS391. This kit is for the 3-screw manifold cylinder style. The other cylinder style uses a 4-screw manifold and is not compatible with this kit. See comparison pictures Please verify your OEM part number and compare your existing cylinder with the product pictures before purchasing.
Includes:
- Cylinder
- Pop Up Piston
- Piston rings
- Circlips
- Wrist pin
Specs:
- Proline® Performance Series
- Extra compression Pop Up Piston
- 49mm
- Nikasil plated
Replaces Stihl OEM #:
- 1140 020 1204, 11400201204
Fits Models:
- MS311, MS391, MS 311, MS 391