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The Mahle top plain ring set for 6.6L (403 CID) Duramax-equipped GMC trucks (2011+; LGH/LML) supplies OE-driven piston ring technology to match factory intent. MAHLE piston rings reduce friction and ring mass while minimizing oil consumption to extend service intervals, reflecting the brand's focus on advanced piston ring engineering.
Mahle Rings GMC Trk 6.6L 403 CID Duramax Turbo Diesel 2011+ LGH / LML GNS Top Plain Ring Set
