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The Mahle OE plain top compression ring set is a cast top compression ring sized 3.9150 in by 5/64 in designed to match OE specifications for compatible engines. It functions as the top sealing ring to contain combustion pressure and control oil movement on the piston. Use this ring set for engine maintenance, rebuilds, or repair work where OE-equivalent dimensions and fitment are required.
Mahle Rings 3.9150in X 5/64in Cast Claimer Top Compression Ring Plain Ring Set
