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Mahle OE plain ring set specified for a 4.065-inch bore with 1.5mm thickness and .151 RW is a piston ring replacement intended for engine rebuilds. This plain ring set follows Napier THM sizing and is supplied to restore sealing and compression in appropriately bored cylinders. It is a practical choice when replacing rings to regain proper combustion chamber sealing and oil control during an overhaul.
Mahle Rings Steel Napier THM 4.065in x 1.5MM .151 RW Plain Ring Set
