Brand new Hyway piston kit. Fits Stihl chainsaw model MS391, standard 49mm bore size.

The kit includes 49mm piston, rings, wrist pin, and circlips.

1 year warranty against defects on this Hyway piston kit.

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!