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The Mahle OE plain piston ring set is a gas-nitrided steel plain ring package sized 4.165 in diameter with .043 in thickness and .157 RW. Presented as a single plain ring set, it adheres to Mahle's performance gas-nitride steel specification and is suitable for replacement or rebuild tasks where those exact ring dimensions are required.
Mahle Rings Performance Gas Nitride Steel 4.165 x .043 .157 RW Plain Ring Set
