Mahle Original Napier Second Piston Rings

The primary function of Mahle Original Napier second rings is to control oil—as much as 80 percent. Made from quality materials like gray cast iron or 9254 carbon steel, these lower compression rings have a tapered hook groove and provide superior oil control, improved combustion gas management, improved top ring stability, and improved sealing. Combined, these qualities provide the performance enthusiast with the best possible oil control and least amount of power loss of any performance second ring. Available individually or in sets, select the Mahle Napier second ring(s) in the bore size and quantity needed for your pistons. Show Less