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The Mahle plain ring set is a Performance Steel Napier second ring sized 3.5531 inch x 1.2 mm (.135 inch RW), offered as a single replacement set for engine rebuilding. These rings are intended for accurate dimensional replacement in compatible engines, providing a precise fit where the specified ring cross-section and diameter are required during repair or maintenance operations.
Mahle Rings Performance Steel Napier 2nd Ring 3.5531in x 1.2MM .135in RW Plain Ring Set
