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Mahle HV385 plasma moly top ring set is a performance-grade ring specified at 3.307" bore with a 1.0mm section and .143" RW profile. Offered as a precision top ring, it uses plasma moly steel to provide a durable sealing surface suitable for higher-duty engine builds. The set is intended for direct use where the listed dimensions and material match the engine's requirements.
Mahle Rings Performance Plasma Moly Steel HV385 Top Ring 3.307in x 1.0MM .143in RW Moly Ring Set
