Piston Ring for BMW M 21 D 24 WEngine applicationsBMW M 21 D 24 W · BMW M 21 D 24 WAring axial heights mm2.5 / 2 / 3.5piston ring 2 type codeM IFUpiston ring 3 type codeDSFpiston ring 1 surface treatment codeCR Ppiston ring 3 surface treatment codeCR PPiston ringBrowse this categoryBrowse this brand · BMW