Mahle file-fit piston rings sized 3.582" +0.005 are supplied with 1.0mm top, 1.0mm second, and 2.0mm oil rings for custom engine fits. These rings require final filing to achieve proper end gaps and bore contact, making them suitable for professional machine work and precise rebuilds. Presented as a matched set, they support accurate sealing and oil control when the machinist establishes correct clearances during installation.
Mahle MS 3.582in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings