Auto Piston and Rings Set compatible with Focus Mustang MKC 2.3L models from 2015 to 2019.Forged aluminum construction provides under -performance conditions.Designed to meet STD 0.00 specifications with no fit cylinder expansion, maintaining engine integrity.Pistons feature a 22mm pin diameter and 87mm outer diameter for precise fitment.Package includes one piston set and one piston ring set.Suitable for engine rebuilds requiring internal components. Disclaimer: This is an aftermarket spare part.Trademarks are used only to specify compatible devices.