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The Mahle OE plain second-ring set is a Napier steel replacement sized 4.020 in × 1.0 mm with .136 in RW dimensions, supplied as a 48-piece bulk pack. Intended for engine rebuild and machining work, these plain 2nd rings provide the correct dimensional match for reconditioning pistons and restoring ring fit during overhaul projects, offered in a bulk quantity for shops and rebuilders.
Mahle Rings Perf Napier Steel 2nd Ring 4.020in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)
