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Mahle OE Moly ring set for 4.040-inch bores supplies a complete engine piston ring set with plasma-moly faces and ductile construction. The listing references specific ring dimensions and a standard configuration to match engines built to the listed bore size. It provides an OEM-style replacement option for rebuilds and routine engine maintenance without overstating benefits.
Mahle Rings 4.040in Bore .043in1/16in3/16in Plasma Moly Ductile Std Tension Engine Set Moly Ring Set
