Description 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!
