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Mahle OE plain piston ring set is offered as a performance Napier steel second ring in a bulk pack, specified at 4.300 in bore with 1.0MM and a .136 in RW marking. Supplied as plain rings in quantity, this set is intended for engine rebuilds and ring replacement where the listed dimensions match the cylinder and piston setup. The overview restates the part identity and sizing to help confirm compatibility during piston service and inventory planning.
Mahle Rings Perf Napier Steel 2nd Ring 4.300in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)
