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The Mahle OE plain piston ring set is a gas-nitrided steel plain ring package sized 4.160 in diameter with .043 in thickness and .157 RW. Sold as a single plain ring set for piston replacement, the ring follows Mahle's performance gas-nitride steel specification and provides the exact dimensions listed for engines calling for this ring size.
Mahle Rings Performance Gas Nitride Steel 4.160 x .043 .157 RW Plain Ring Set
