This Mahle plain second ring set is a replacement piston ring pack specified as Performance Steel Napier second rings with a 3.576-inch diameter and 1.0mm cross-section (.136in RW). It supplies correct-dimension second rings for engine rebuilds or repairs where precise ring sizing is required, making it suitable for restoring piston-to-cylinder sealing characteristics to expected specifications.
Mahle Rings Performance Steel Napier 2nd Ring 3.576in x 1.0MM .136in RW Plain Ring Set