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The Mahle OE moly ring set is a performance-quality piston ring kit featuring a plasma steel top ring sized 4.190 in with a 1.0 mm specification and .143 in RW HVOF moly treatment. Intended as an OE-style replacement, this ring set restores sealing and wear characteristics in compatible engines while using proven molybdenum-enhanced coatings to support oil control and ring longevity under normal service conditions.
Mahle Rings Performance Plasma Steel Top Ring 4.190in x 1.0MM .143in RW HVOF Moly Ring Set
