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MAHLE Moly piston ring set for GM 4.2L inline-six engines (2003–2005) delivers OE-focused ring technology aimed at reducing friction and ring mass while limiting engine oil consumption. Developed to meet OE requirements, MAHLE piston rings emphasize longer service life and efficient oil control for engine rebuild applications where original-equipment behavior and proven manufacturing standards are required.
Mahle Rings GM 4.2L I6 2003-2005 Moly Ring Set
