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The Mahle OE Chrome Ring Set CP20 is a standard-tension piston ring kit specified with 3.0 mm oil rings for a 4.125-inch bore in a chrome finish. Supplied as a conventional OE-style set, it’s intended for engine rebuilds where standard tension and precise bore sizing matter, giving technicians an OE-compatible option for restoring piston sealing and ring performance to factory-like specifications.
Mahle Rings CP20 Std Tension 3.0MM Oil Rings 4.125in Bore Chrome Ring Set
