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The Mahle file-fit piston ring set for a 4.130 in. bore (+0.005 in) provides matched ring thicknesses of 0.043 in. for the top and second rings with a 3.0 mm oil ring. These rings are supplied for precise cylinder rebuilds where final honing and filing yield an exact fit. Use them when you need controlled ring end gap and reliable sealing during engine reconditioning.
Mahle MS 4.130in+.005in .043in .043in 3.0mm File Fit Rings
