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Mahle piston ring set supplies precision file-fit rings matched to the listed bore and ring thicknesses for dependable cylinder sealing. These rings are offered at a 3.786"+0.005 bore tolerance with .043" top and second ring thickness and a 3.0mm oil ring, provided for file-fit installation. Mahle dimensions support consistent ring fit and sealing during engine assembly without speculative performance claims.
Mahle MS 3.791in+.005in .043 .043 3.0mm File Fit Rings
