Piston Ring 1004022GH030 For S5 This piston ring is designed for use with S5 engine models.It proper sealing between the piston and cylinder wall to maintain compression and improve engine performance.The ring is engineered to withstand temperatures and pressure, providing under demanding conditions.Compatible with specified engine configurations, it supports efficient combustion and reduced oil consumption. Important: This is an independent aftermarket part.Brand/model references serve only to show compatibility.