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Mahle OE second plain ring set is a Napier steel 2nd ring sized 4.205 inches with 1.0 mm thickness and .136 inch RW specification. Sold as a plain ring set, it serves as a replacement second compression ring in engine rebuilds where these exact dimensions are required. Mahle OE supplies OEM-grade ring components for precise piston sealing and fitment needs.
Mahle Rings Performance Napier Steel 2nd Ring 4.205in x 1.0MM .136in RW Plain Ring Set
