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The Mahle OE plain ring set PC479 is a standard-tension piston ring kit sized for a 4.125-inch bore and labeled as 'Std Tension' with plain rings. Intended for engine rebuilds or repairs, this set supplies the core sealing rings required for piston-to-cylinder sealing in compatible engines. It provides the basic ring components technicians expect when restoring compression and oil control.
Mahle Rings Fire Power PC479 Std Tension 4.125in Plain Ring Set
