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Mahle OE plain ring set includes Napier steel 2nd rings sized 4.130" x 1.0mm with .136" radial wall for piston ring replacement in compatible engines. Supplied as precision-manufactured rings, they offer an OE-grade option for rebuilding pistons and restoring compression control. These rings are suitable for engine overhaul projects that require accurate sizing and OE-level fitment without altering engine geometry.
Mahle Rings Performance Napier Steel 2nd Ring 4.130in x 1.0MM .136in RW Plain Ring Set
