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The Mahle piston ring set is specified for a 4.1350 inch bore diameter and includes a top ring with a 1.2 mm edge width. The set lists a steel plasma moly top ring and moly ring configuration, reflecting Mahle OE dimensions and surface treatment. It provides a direct specification-reference for engine rebuilds where a 4.1350" bore and a 1.2 mm top ring edge are required.
Mahle Rings 4.1350 Bore Dia 1.2MM Edge Width Steel Plasma Moly Top Ring Moly Ring Set
