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The Mahle OE moly top compression ring for a 4.1100in bore is specified at 5/64in thickness and uses a moly face for improved seating characteristics in compatible engines. Offered as an OE-quality component, it provides a direct-replacement compression ring option sized to match the listed bore and thickness, intended to support reliable sealing when installed according to engine manufacturer guidance.
Mahle Rings 4.1100in X 5/64in Moly Claimer Top Compression Ring Moly Ring Set
