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Mahle OE plain ring set for a 4.600-inch bore with .043in and .135mm ring widths is a replacement piston ring package intended for engine reconditioning. Supplied to match Napier THM-13 specifications, this plain ring set supports sealing and ring-end control in rebuilt cylinders. Use it when restoring compression and oil control to engines sized to the specified bore and ring dimensions.
Mahle Rings Steel Napier THM-13 4.600 Bore x .043in .135 RW Plain Ring Set
