Brand new Hyway 49mm cylinder/piston kit. Fits Stihl chainsaw model MS391, also fits MS311 as a big bore.
The kit includes Nikasil plated cylinder, piston, rings, wrist pin, circlips, and Oregon spark plug.
High quality kit that comes with a 1 year guarantee against manufacturer defects.
Please ensure you have the 3 bolt flange as pictured, there is also a 4 bolt version that is not compatible with this cylinder.
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!