Brand new Hyway 49mm cylinder/piston kit. Fits Stihl chainsaw model MS390 039 MS310 MS290 029. Standard bore size for MS390, 039 and big bore for MS310, MS290, 029.

The kit includes Nikasil plated cylinder, piston, rings, wrist pin, circlips, engine pan, and Oregon spark plug.

Please note: the new 2019 castings on this model require the muffler bolt slots to be filed out slightly larger in order to fit properly.

These cylinders are made to use the OEM self tapping Stihl cylinder bolts (the holes are not threaded).
This cylinder has a port for a decompression valve, if your saw doesn’t use a valve we can include a free plug, just ask.
High quality kit that comes with a 1 year warranty against manufacturer defects.

Wolf Creek Saw Shop is a proud U.S. seller, we ship within 1 day of receiving payment, and you will get your parts quickly!