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The Mahle MS piston ring set for GM Duramax with a 4.055" bore is a drop-in, three-ring steel pack specified as 3.0K, 2.0mm and 3.0mm for eight-cylinder diesel engines. Offered as a direct replacement for this bore, the steel rings support compression sealing and oil control in engine rebuilds and overhauls where the 4.055" bore and three-ring configuration are required.
Mahle MS GM Duramax 4.055in 3.0K 2.0mm 3.0mm Drop In Rings
