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The Mahle plain second ring set is specified at 3.8000 in diameter with a 5/64 in edge width as grey iron RBT standard-gap second rings. Supplied as a set intended for piston ring replacement and routine engine top-end service, these rings match standard-gap bore sizing and support OEM-style rebuilds or maintenance where the listed ring dimensions are required for correct fit.
Mahle Rings 3.8000in X 5/64in Edge Width Grey Iron RBT Std Gap Second Ring Plain Ring Set
