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Mahle OE moly ring set for a 4.020 in bore includes standard tension moly-coated rings sized to OEM specifications for proper sealing and wear characteristics. Designed as a complete engine ring set, these precision rings support compression and oil control during normal engine operation. Use with the indicated bore and thickness specs to maintain correct ring fit and sealing behavior in compatible engine builds.
Mahle Rings 4.020in Bore 1/16in 3.00MM Plasma Moly Ductile Std Tension Engine Set Moly Ring Set
