Piston ring engine STD - X60 This piston ring set is designed for use in internal combustion engines requiring standard size rings.It is engineered to provide effective sealing between the piston and cylinder wall, helping maintain compression and optimize engine performance.The rings are constructed to withstand temperatures and pressures typical in engine.This set is intended for engines that specify STD or standard diameter piston rings This is a compatible aftermarket part.References to brands or models do not imply OEM association.