This is a genuine McCulloch piston assembly for the 700 chainsaw model, part number 85239. This piston assembly does not have rings but comes with bearings. This item is new old stock the last piston to ship will be in a none marked box unlike the others in the yellow box. Assembly is required and it is compatible with McCulloch chainsaws.

Please note that this product comes with a California Prop 65 Warning, which requires businesses to provide warnings to Californians about significant exposure to chemicals that cause cancer, birth defects, or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov. Buy with confidence and get your McCulloch chainsaw back up and running with this reliable OEM NOS piston!