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The Mahle OE plasma moly steel top compression ring set, sized 4.605 x 1.0 mm .143 RW, supplies the plasma-moly coated top ring for engines requiring this diameter and thickness. Intended for piston rebuilds and precision assembly, the set matches the dimensional specification noted in the description. Use this top ring where the engine bore, ring groove and rebuild specifications call for a 4.605-inch diameter ring of 1.0 mm section.
Mahle Rings Performance Plasma Moly Steel Top Compression Ring 4.605 x 1.0MM .143 RW Moly Ring Set
