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The Mahle OE plasma moly steel top compression ring, size 4.615 in x 1.0 mm .143 RW, is offered as a 48-piece bulk pack for professional use. The plasma-moly coating on the steel top ring provides the sealing surface described in the title and is intended for engines that specify this exact diameter and ring cross-section. This bulk quantity suits machine shops and rebuilders who require multiple identical top rings for piston assembly tasks.
Mahle Rings Perf Plasma Moly Steel Top Comp Ring 4.615in x 1.0MM .143 RW Ring Set (48 Qty Bulk Pack)
