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The Mahle OE plain ring set is a steel Napier plain ring assortment sized for a 4.000 in bore with 1.5 mm section thickness and .151 ring width. Sold as a ring set, these components are intended for piston ring replacement during engine rebuilds or maintenance. The straightforward sizing and construction make them suitable where this exact standard dimension is required.
Mahle Rings Steel Napier THM 4.000 x 1.5MM .151 RW Plain Ring Set
