EA888 Engine Piston Ring Set for A3 A4 A5 1.8T 23mm 06k107065BQ This piston ring set is designed as a replacement for 1.8T TSI EA888 engines, compatible with A3, A4, and A5 models equipped with a 23mm piston pin.The set includes one piston, four piston pins, and eight piston snap rings, providing a complete solution for replacing worn or damaged components. Compatibility Disclaimer: This is an part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.