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The Mahle OE plain ring set is a performance steel Napier second ring kit sized 4.075in x 1.5 mm (.151 RW). Supplied to match that precise dimension, these plain second rings are intended for use during engine rebuilds or piston maintenance where the specified size and steel construction are required. Check dimensions carefully to confirm compatibility with your engine application before ordering.
Mahle Rings Performance Steel Napier 2nd Ring 4.075in x 1.5MM .151RW Plain Ring Set
