3PCS Piston And Ring Set For 118i B38A15 B38 1. 5T Engine Car Accessories OE Number: 11 25 8 657 760 Replacement OE Numbers: 11 25 8 637 989 11 25 8 638 448 11 25 8 638 450 11 25 9 468 870 11 25 8 618 502 11 25 8 618 505 Specifications: - Cylinder bore: Φ82. 00mm (STD) - Compression ratio: 11:1 - Piston pin: Φ22mm - Ring thickness: 1st 1. 2mm / 2nd 1. 5mm / 3rd 2. 0mm - Engine compatibility: B38A15 1. 5 (1499cc) Turbocharged Package Includes: - Piston & Ring (3 cylinders) Compatible Car Models: 116i (2015-2021) 118i (2015-2021) 216i Tourer (2018-2020) 218i Tourer (2018-2020) 218i (2015-2020) 318i (2015-2019) 418i (2015-2020) X1 18i (2015-2021) X2 18i (2018-2021) Cooper One (2015-2020) Clubman One (2015-2020) Countryman One (2017-2020) Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.