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Mahle OE Moly ring set for 4.040-inch bores supplies plasma-moly-faced piston rings in a ductile build with standard tension. Intended as an engine replacement set, it addresses sealing and oil control for engines matched to the listed bore size. The overview focuses on OEM-style fit and function for routine rebuilds without adding unsupported performance claims.
Mahle Rings 4.040in Bore 1/16in 3.00MM Plasma Moly Ductile Std Tension Engine Set Moly Ring Set
