The Mahle MS piston ring set sized 4.070in +0.005 includes three file-fit rings with thicknesses 1.0mm, 1.0mm and 2.0mm. This replacement ring set is intended for engine rebuilds and precision finishing, allowing machinists to file-fit rings to cylinder bores to restore compression and control oil consumption during reassembly.
Mahle MS 4.070in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings