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Mahle plasma-moly top compression ring set includes a 3.9723 in diameter ring with a 1/16 in edge width, manufactured as a ductile, plasma-moly component intended for piston sealing and combustion pressure control. This moly ring set is specified as a top compression ring and is provided as a precision-fitting replacement for rebuilding or engine refresh projects where the listed dimensions match bore and ring groove requirements.
Mahle Rings 3.9723in X 1/16in Edge Width Plasma-Moly Ductile Top Compression Ring Moly Ring Set
