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The Mahle OE plain piston ring set uses gas-nitrided steel with 4.120 x .043, .157 RW sizing to supply accurate piston sealing for engine rebuilds and replacements. Supplied as a standard plain ring set, it emphasizes matched dimensions for correct cylinder fit and is intended for installations where the listed ring thickness and running width are required to restore compression sealing.
Mahle Rings Performance Gas Nitride Steel 4.120 x .043 .157 RW Plain Ring Set
