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Mahle MS piston rings are offered as single-cylinder file-fit rings sized 3.780" plus .005 and configured as 1.0mm, 1.0mm, 2.0mm ring set. These rings are intended for custom fitting during engine assembly where precise cylinder sizing requires file-fitting. The set supplies the ring dimensions and tolerances needed for professional ring fitting and installation.
Mahle MS 3.780in+.005in 1.0mm 1.0mm 2.0mm File Fit Rings
