Brand new Hyway 56mm Big Bore cylinder/piston kit. Fits Stihl chainsaw model MS660 or 066. Great way to add some cc’s and power you can feel!

New casting with larger ports.

The kit includes Nikasil plated cylinder, piston, rings, wrist pin, circlips, and gaskets. Also includes an Oregon spark plug.

This is a high quality Nikasil cylinder kit that comes with a 1 year guarantee.

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!