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The Mahle OE plain piston ring set is constructed from gas-nitrided steel and specified at 4.085 x .043, .157 RW for piston sealing during overhauls and replacements. This plain ring set is matched to the listed dimensions to help ensure accurate cylinder fitment and is intended for installations where exact ring thickness and running width are necessary to restore proper engine sealing.
Mahle Rings Performance Gas Nitride Steel 4.085 x .043 .157 RW Plain Ring Set
